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1951 vulnerabilities found for junos by juniper
CVE-2026-57054 (GCVE-0-2026-57054)
Vulnerability from nvd – Published: 2026-07-09 21:14 – Updated: 2026-07-10 14:34
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Web filtering doesn't block specifically formatted URLs
Summary
A Use of Incorrectly-Resolved Name or Reference vulnerability in the URL filtering plugin of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass web filtering and access downstream resources that should be unreachable.
If an MX Series device is configured with web filtering, and an attacker sends a request with a specifically formatted URL, this request will get forwarded despite the system being configured to block it. In turn, an attacker can access downstream resources that are expected to be unreachable.
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2-S1,
* 25.4 versions before 25.4R1-S2, 25.4R2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110093 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2-S1 (custom) Affected: 25.4 , < 25.4R1-S2, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57032 (GCVE-0-2026-57032)
Vulnerability from nvd – Published: 2026-07-09 21:14 – Updated: 2026-07-10 14:34
VLAI
EPSS
VEX
Title
Junos OS: EX Series: Subscribing to an unsupported telemetry sensor path causes fxpc process crash
Summary
An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS).
If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted.
The following log message can be seen when this issue happens:
agentd[<PID>]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for <sensor>
This issue affects Junos OS on
EX2300, EX3400, EX4000, EX4100 and EX4400
devices:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-236 - Improper Handling of Undefined Parameters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110092 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57030 (GCVE-0-2026-57030)
Vulnerability from nvd – Published: 2026-07-09 21:13 – Updated: 2026-07-10 14:43
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: Flow sessions are not getting cleared leading to a DoS
Summary
A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
As part of the stateful traffic processing on SRX Series devices flows are being established, and removed when not needed anymore. During the removal process the timeout of a flow should be set to 3 seconds and consequentially the flow should be removed shortly after. Due to a race condition occurring when setting the timeout there is a chance (the exact conditions are outside the attackers control) that the timeout is instead set to a very high value of larger than 10,000 seconds:
user@host> show security flow session | match timeout
Session ID: 98784248524, Policy name: PROD-FLOW/4, HA State: Active, Timeout: 85250, Session State: Valid
This will lead to an accumulation of flows which can be observed by an ever-increasing value of invalidated sessions in the output of 'show security flow session summary':
user@host> show security flow session summary | match invalid
Invalidated sessions: 216931These sessions can't be cleared manually with the 'clear security flow session' command, which will either lead to forwarding to stop (and the system needs to be manually recovered with a reboot) or to a flowd core and automatic reboot.
This issue affects Junos OS on SRX Series:
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S1, 24.4R2-S2,
* 25.2 versions before 25.2R1-S2, 25.2R2.
This issue does not affect releases earlier than 24.2R1;
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110090 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
24.2 , < 24.2R2-S3
(custom)
Affected: 24.4 , < 24.4R2-S1 (custom) Affected: 25.2 , < 25.2R1-S2 (custom) Unaffected: 0 , < 24.2R1 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57027 (GCVE-0-2026-57027)
Vulnerability from nvd – Published: 2026-07-09 21:08 – Updated: 2026-07-10 14:33
VLAI
EPSS
VEX
Title
Junos OS: EX4100 Series, EX4400: With sFlow configured in a VC scenario multicast traffic leads to an FPC crash
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX Series devices allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).When sFlow is configured in a Virtual Chassis (VC) scenario with EX4100 Series or EX4400 Series devices, multicast traffic which is received on one VC member and sent out on another member leads to a memory leak and ultimately an FPC crash and restart.
The leak can be monitored by watching the continuous increase of the buffer values in the output of:
user@host> show chassis fpc
This issue affects Junos OS on EX4100 Series and EX4400:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110087 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57025 (GCVE-0-2026-57025)
Vulnerability from nvd – Published: 2026-07-09 21:07 – Updated: 2026-07-10 14:10
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning' command causes l2ald crash
Summary
A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS).
On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted.
This issue affects EX Series, QFX Series, MX Series:
Junos OS:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2,
* 24.4 versions before 24.4R1-S2.
Junos OS Evolved:
* all versions before 23.2R2-S7-EVO,
* 23.4 versions before 23.4R2-S8-EVO,
* 24.2 versions before 24.2R2-EVO,
* 24.4 versions before 24.4R1-S3-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-466 - Return of Pointer Value Outside of Expected Range
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110085 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2 (custom) Affected: 24.4 , < 24.4R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8-EVO (custom) Affected: 24.2 , < 24.2R2-EVO (custom) Affected: 24.4 , < 24.4R1-S3-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57021 (GCVE-0-2026-57021)
Vulnerability from nvd – Published: 2026-07-09 21:05 – Updated: 2026-07-10 14:28
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: If VPN compliance-check is configured an attacker can cause http-gk process crash
Summary
An Out-of-bounds Write vulnerability in the http-gatekeeper (http-gk) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
If an SRX Series device is configured for remote-access VPN with pre-logon compliance check, a network-based attacker sending specifically formatted requests can trigger an out of bounds write leading to an http-gk process crash. This crash leads to unavailability of all services depending on the [ system services web-management ] configuration (like J-Web, remote access VPN and firewall authentication) until the process automatically restarts.
This issue affects Junos OS on SRX Series:
* 23.2 versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S1, 25.4R2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110081 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.2 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) Affected: 25.4 , < 25.4R1-S1, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57020 (GCVE-0-2026-57020)
Vulnerability from nvd – Published: 2026-07-09 21:05 – Updated: 2026-07-10 13:29
VLAI
EPSS
VEX
Title
Junos OS: QFX10000 Series: IPv6 multicast traffic received on non-IRB interfaces causes a multicast flood
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
On all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI) leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.
This issue affects Junos OS on QFX10000 Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4.
This issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110080 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57019 (GCVE-0-2026-57019)
Vulnerability from nvd – Published: 2026-07-09 21:04 – Updated: 2026-07-10 13:29
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Specific traffic causes an FPC to reset
Summary
An Improper Validation of Specified Quantity in Input vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
When a specific packet is received from device in the same broadcast domain, an affected system calculates the packet size incorrectly. This causes further packet processing to fail, which triggers an FPC major error, resulting in a FPC reset impacting traffic until the FPC has automatically recovered.
Affected scenarios are: MAP-T, or non-IP traffic encapsulated in IP (e.g. MPLS over GRE).
When this issue happens the following logs can be observed:
fpc<#> CMError: /fpc/0/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_LI_INT_REG_UNROLL_TAIL_LENGTH_OVF (0x2205eb), scope: pfe, category: functional, severity: major, module: MQSS(0), type: LI: Unroll TAIL length overflow, oc_category: default
fpc<#> Performing action reset-fru for error /fpc/0/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_LI_INT_REG_UNROLL_TAIL_LENGTH_OVF (0x2205eb) in module: MQSS(0) with scope: pfe category: functional level: major, oc_category: default
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S6,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110079 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S6
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-33801 (GCVE-0-2026-33801)
Vulnerability from nvd – Published: 2026-07-09 21:03 – Updated: 2026-07-10 13:31
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: When a specifically malformed BGP route update is received RPD crashes
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker sending a specific BGP update over an established BGP session to cause a Denial-of-Service (DoS).
Upon receipt of a specifically malformed non-inet/inet6 unicast BGP update, an RPD crash and restart is triggered, which will cause a complete service outage until routing has reconverged. The rpd crash occurs before the update can be readvertised, so there is no downstream propagation.
This issue affects:
* Junos OS versions 25.2 before 25.2R2;
* Junos OS Evolved versions 25.2 before 25.2R2-EVO.
This issue doesn't affect Junos OS versions before 25.2R1 nor Junos OS Evolved versions before 25.2R1-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110076 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
25.2 , < 25.2R2
(custom)
|
|
| Juniper Networks | Junos OS Evolved |
Affected:
25.2 , < 25.2R2-EVO
(custom)
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Date Public
2026-07-08 16:00
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CVE-2026-33799 (GCVE-0-2026-33799)
Vulnerability from nvd – Published: 2026-07-09 21:02 – Updated: 2026-07-10 13:31
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: Receipt of a specific SNMPv3 request results in memory leak and eventual snmpd crash
Summary
An Out-of-bounds Write vulnerability in the SNMP daemon (snmpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated network-based attacker sending specific valid SNMPv3 queries to trigger a memory leak. Over time, continuous receipt of these queries will result in snmpd process memory exhaustion, resulting in a process crash and restart, impacting the ability to monitor the system via SNMP.
Memory usage can be monitored using the following command:
user@device> show system processes extensive | match snmpd
This issue affects:
Junos OS:
* all versions before 21.2R3-S8;
* from 21.4 before 21.4R3-S7;
* from 22.1 before 22.1R3-S6;
* from 22.2 before 22.2R3-S4;
* from 22.3 before 22.3R3-S3;
* from 22.4 before 22.4R3-S2;
* from 23.2 before 23.2R2;
* from 23.4 before 23.4R2.
Junos OS Evolved:
* all versions before 21.2R3-S8-EVO;
* from 21.4 before 21.4R3-S7-EVO;
* all versions of 22.1-EVO,
* from 22.2 before 22.2R3-S4-EVO;
* from 22.3 before 22.3R3-S3-EVO;
* all versions of 22.4-EVO,
* from 23.2 before 23.2R2-EVO;
* from 23.4 before 23.4R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110074 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 21.2R3-S8
(custom)
Affected: 21.4 , < 21.4R3-S7 (custom) Affected: 22.1 , < 22.1R3-S6 (custom) Affected: 22.2 , < 22.2R3-S4 (custom) Affected: 22.3 , < 22.3R3-S3 (custom) Affected: 22.4 , < 22.4R3-S2 (custom) Affected: 23.2 , < 23.2R2 (custom) Affected: 23.4 , < 23.4R2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S8-EVO
(custom)
Affected: 21.4 , < 21.4R3-S7-EVO (custom) Affected: 22.1 , < 22.1* (custom) Affected: 22.2 , < 22.2R3-S4-EVO (custom) Affected: 22.3 , < 22.3R3-S3-EVO (custom) Affected: 22.4 , < 22.4* (custom) Affected: 23.2 , < 23.2R2-EVO (custom) Affected: 23.4 , < 23.4R2-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-33797 (GCVE-0-2026-33797)
Vulnerability from nvd – Published: 2026-04-09 21:31 – Updated: 2026-04-23 20:08
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: An attacker sending a specific genuine BGP packet causes a BGP reset
Summary
An Improper Input Validation vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker, sending a specific genuine BGP packet in an already established BGP session to reset only that session causing a Denial of Service (DoS).
An attacker repeatedly sending the packet will sustain the Denial of Service (DoS).This issue affects Junos OS:
* 25.2 versions before 25.2R2
This issue does not affect Junos OS versions before 25.2R1.
This issue affects Junos OS Evolved:
* 25.2-EVO versions before 25.2R2-EVO
This issue does not affect Junos OS Evolved versions before 25.2R1-EVO.
eBGP and iBGP are affected.
IPv4 and IPv6 are affected.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107850 | vendor-advisory |
| https://supportportal.juniper.net/JSA107850 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
25.2 , < 25.2R2
(semver)
Unaffected: 0 , < 25.2R1 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
25.2 , < 25.2R2-EVO
(semver)
Unaffected: 0 , < 25.2R1-EVO (semver) |
Date Public
2026-04-08 16:00
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CVE-2026-33793 (GCVE-0-2026-33793)
Vulnerability from nvd – Published: 2026-04-09 21:24 – Updated: 2026-04-16 15:14
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: When an unsigned Python op script configuration is present, a local low privileged user can compromise the system
Summary
An Execution with Unnecessary Privileges vulnerability in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to gain root privileges, thus compromising the system.
When a configuration that allows unsigned Python op scripts is present on the device, a non-root user is able to execute malicious op scripts as a root-equivalent user, leading to privilege escalation.
This issue affects Junos OS:
* All versions before 22.4R3-S7,
* from 23.2 before 23.2R2-S4,
* from 23.4 before 23.4R2-S6,
* from 24.2 before 24.2R1-S2, 24.2R2,
* from 24.4 before 24.4R1-S2, 24.4R2;
Junos OS Evolved:
* All versions before 22.4R3-S7-EVO,
* from 23.2 before 23.2R2-S4-EVO,
* from 23.4 before 23.4R2-S6-EVO,
* from 24.2 before 24.2R2-EVO,
* from 24.4 before 24.4R1-S1-EVO, 24.4R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-250 - Execution with Unnecessary Privileges
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA103142 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 22.4R3-S7
(semver)
Affected: 23.2 , < 23.2R2-S4 (semver) Affected: 23.4 , < 23.4R2-S6 (semver) Affected: 24.2 , < 24.2R1-S2, 24.2R2 (semver) Affected: 24.4 , < 24.4R1-S2, 24.4R2 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 22.4R3-S7-EVO
(semver)
Affected: 23.2 , < 23.2R2-S4-EVO (semver) Affected: 23.4 , < 23.4R2-S6-EVO (semver) Affected: 24.2 , < 24.2R2-EVO (semver) Affected: 24.4 , < 24.4R1-S1-EVO, 24.4R2-EVO (semver) |
Date Public
2026-04-08 16:00
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CVE-2026-33791 (GCVE-0-2026-33791)
Vulnerability from nvd – Published: 2026-04-09 21:38 – Updated: 2026-04-22 14:48
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: Execution of crafted CLI commands allows for arbitrary shell injection as root
Summary
An OS Command Injection vulnerability in the CLI processing of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker executing specific, crafted CLI commands to inject arbitrary shell commands as root, leading to a complete compromise of the system.
Certain 'set system' commands, when executed with crafted arguments, are not properly sanitized, allowing for arbitrary shell injection. These shell commands are executed as root, potentially allowing for complete control of the vulnerable system.
This issue affects:
Junos OS:
* all versions before 22.4R3-S8,
* from 23.2 before 23.2R2-S5,
* from 23.4 before 23.4R2-S7,
* from 24.2 before 24.2R2-S2,
* from 24.4 before 24.4R2,
* from 25.2 before 25.2R2;
Junos OS Evolved:
* all versions before 22.4R3-S8-EVO,
* from 23.2 before 23.2R2-S5-EVO,
* from 23.4 before 23.4R2-S7-EVO,
* from 24.2 before 24.2R2-S2-EVO,
* from 24.4 before 24.4R2-EVO,
* from 25.2 before 25.2R1-S1-EVO, 25.2R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107875 | vendor-advisory |
| https://supportportal.juniper.net/JSA107875 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 22.4R3-S8
(semver)
Affected: 23.2 , < 23.2R2-S5 (semver) Affected: 23.4 , < 23.4R2-S7 (semver) Affected: 24.2 , < 24.2R2-S2 (semver) Affected: 24.4 , < 24.4R2 (semver) Affected: 25.2 , < 25.2R2 (semver) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 22.4R3-S8-EVO
(semver)
Affected: 23.2 , < 23.2R2-S5-EVO (semver) Affected: 23.4 , < 23.4R2-S7-EVO (semver) Affected: 24.2 , < 24.2R2-S2-EVO (semver) Affected: 24.4 , < 24.4R2-EVO (semver) Affected: 25.2 , < 25.2R1-S1-EVO, 25.2R2-EVO (semver) |
Date Public
2026-04-08 16:00
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CVE-2026-33790 (GCVE-0-2026-33790)
Vulnerability from nvd – Published: 2026-04-09 21:38 – Updated: 2026-04-10 13:56
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: In a NAT64 configuration, receipt of a specific, malformed ICMPv6 packet will cause the srxpfe process to crash and restart.
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an attacker sending a specific, malformed ICMPv6 packet to cause the srxpfe process to crash and restart. Continued receipt and processing of these packets will repeatedly crash the srxpfe process and sustain the Denial of Service (DoS) condition.
During NAT64 translation, receipt of a specific, malformed ICMPv6 packet destined to the device will cause the srxpfe process to crash and restart.
This issue cannot be triggered using IPv4 nor other IPv6 traffic.
This issue affects Junos OS on SRX Series:
* all versions before 21.2R3-S10,
* all versions of 21.3,
* from 21.4 before 21.4R3-S12,
* all versions of 22.1,
* from 22.2 before 22.2R3-S8,
* all versions of 22.4,
* from 22.4 before 22.4R3-S9,
* from 23.2 before 23.2R2-S6,
* from 23.4 before 23.4R2-S7,
* from 24.2 before 24.2R2-S3,
* from 24.4 before 24.4R2-S3,
* from 25.2 before 25.2R1-S2, 25.2R2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107874 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 21.2R3-S10
(semver)
Affected: 21.4 , < 21.4R3-S12 (semver) Affected: 22.2 , < 22.2R3-S8 (semver) Affected: 22.4 , < 22.4R3-S9 (semver) Affected: 23.2 , < 23.2R2-S6 (semver) Affected: 23.4 , < 23.4R2-S7 (semver) Affected: 24.2 , < 24.2R2-S3 (semver) Affected: 24.4 , < 24.4R2-S3 (semver) Affected: 25.2 , < 25.2R1-S2, 25.2R2 (semver) Affected: 21.3 , < 21.3* (semver) Affected: 22.1 , < 22.1* (semver) Affected: 22.3 , < 22.3* (semver) |
Date Public
2026-04-08 16:00
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CVE-2026-33788 (GCVE-0-2026-33788)
Vulnerability from nvd – Published: 2026-04-09 21:27 – Updated: 2026-04-13 13:04
VLAI
EPSS
VEX
Title
Junos OS Evolved: Local, authenticated attacker can gain privileged access to FPCs
Summary
A Missing Authentication for Critical Function vulnerability in the Flexible PIC Concentrators (FPCs) of Juniper Networks Junos OS Evolved on PTX Series allows a local, authenticated attacker with low privileges to gain direct access to FPCs installed in the device.
A local user with low privileges can gain direct access to the installed FPCs as a high privileged user, which can potentially lead to a full compromise of the affected component.
This issue affects Junos OS Evolved on PTX10004, PTX10008, PTX100016, with JNP10K-LC1201 or JNP10K-LC1202:
* All versions before 21.2R3-S8-EVO,
* 21.4-EVO versions before 21.4R3-S7-EVO,
* 22.2-EVO versions before 22.2R3-S4-EVO,
* 22.3-EVO versions before 22.3R3-S3-EVO,
* 22.4-EVO versions before 22.4R3-S2-EVO,
* 23.2-EVO versions before 23.2R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107806 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S8-EVO
(semver)
Affected: 21.4-EVO , < 21.4R3-S7-EVO (semver) Affected: 22.2-EVO , < 22.2R3-S4-EVO (semver) Affected: 22.3-EVO , < 22.3R3-S3-EVO (semver) Affected: 22.4-EVO , < 22.4R3-S2-EVO (semver) Affected: 23.2-EVO , < 23.2R2-EVO (semver) |
Date Public
2026-04-08 16:00
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CVE-2026-33787 (GCVE-0-2026-33787)
Vulnerability from nvd – Published: 2026-04-09 21:37 – Updated: 2026-04-13 18:06
VLAI
EPSS
VEX
Title
Junos OS: SRX1500, SRX4100, SRX4200, SRX4600: When a specific show command is executed chassisd crashes
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600 allows a local attacker with low privileges to cause a complete Denial of Service (DoS).
When a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.
This issue affects Junos OS on SRX1500, SRX4100, SRX4200 and SRX4600:
* 23.2 versions before 23.2R2-S6,
* 23.4 versions before 23.4R2-S7
* 24.2 versions before 24.2R2-S2,
* 24.4 versions before 24.4R2,
* 25.2 versions before 25.2R1-S1, 25.2R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107873 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S6
(semver)
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Date Public
2026-04-08 16:00
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CVE-2026-33786 (GCVE-0-2026-33786)
Vulnerability from nvd – Published: 2026-04-09 21:28 – Updated: 2026-04-13 18:06
VLAI
EPSS
VEX
Title
Junos OS: SRX1600, SRX2300, SRX4300: When a specific show command is executed chassisd crashes
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1600, SRX2300 and SRX4300 allows a local attacker with low privileges to cause a complete Denial of Service (DoS).
When a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.
This issue affects Junos OS on SRX1600, SRX2300 and SRX4300:
* 24.4 versions before 24.4R1-S3, 24.4R2.
This issue does not affect Junos OS versions before 24.4R1.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107810 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
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Affected:
24.4 , < 24.4R1-S3, 24.4R2
(semver)
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Date Public
2026-04-08 08:21
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CVE-2026-33785 (GCVE-0-2026-33785)
Vulnerability from nvd – Published: 2026-04-09 21:37 – Updated: 2026-04-14 03:55
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Missing Authorization for specific 'request' CLI commands in a JDM/CSDS scenario
Summary
A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on MX Series allows a local, authenticated user with low privileges to execute specific commands which will lead to a complete compromise of managed devices.
Any user logged in, without requiring specific privileges, can issue 'request csds' CLI operational commands. These commands are only meant to be executed by high privileged or users designated for Juniper Device Manager (JDM) / Connected Security Distributed Services (CSDS) operations as they will impact all aspects of the devices managed via the respective MX.
This issue affects Junos OS on MX Series:
* 24.4 releases before 24.4R2-S3,
* 25.2 releases before 25.2R2.
This issue does not affect Junos OS releases before 24.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107872 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
24.4 , < 24.4R2-S3
(semver)
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Date Public
2026-04-08 16:00
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CVE-2026-33782 (GCVE-0-2026-33782)
Vulnerability from nvd – Published: 2026-04-09 21:29 – Updated: 2026-04-13 18:06
VLAI
EPSS
VEX
Title
Junos OS: MX Series: In specific DHCPv6 scenarios jdhcpd memory increases continuously with subscriber logouts
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the DHCP daemon (jdhcpd) of Juniper Networks Junos OS on MX Series, allows an adjacent, unauthenticated attacker to cause a memory leak, that will eventually cause a complete Denial-of-Service (DoS).
In a DHCPv6 over PPPoE, or DHCPv6 over VLAN with Active lease query or Bulk lease query scenario, every subscriber logout will leak a small amount of memory. When all available memory has been exhausted, jdhcpd will crash and restart which causes a complete service impact until the process has recovered.
The memory usage of jdhcpd can be monitored with:
user@host> show system processes extensive | match jdhcpd
This issue affects Junos OS:
* all versions before 22.4R3-S1,
* 23.2 versions before 23.2R2,
* 23.4 versions before 23.4R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107820 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 22.4R3-S1
(semver)
Affected: 23.2 , < 23.2R2 (semver) Affected: 23.4 , < 23.4R2 (semver) |
Date Public
2026-04-08 16:00
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CVE-2026-33781 (GCVE-0-2026-33781)
Vulnerability from nvd – Published: 2026-04-09 21:35 – Updated: 2026-04-10 14:10
VLAI
EPSS
VEX
Title
Junos OS: EX Series, QFX Series: In a VXLAN scenario when specific control protocol packets are received, memory leaks and eventually no traffic is passed
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX and QFX Series devices allow an unauthenticated, adjacent attacker to cause a complete Denial of Service (DoS).
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* 24.4 releases before 24.4R2,
* 25.2 releases before 25.2R1-S1, 25.2R2.
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA107869 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
24.4 , < 24.4R2
(semver)
Affected: 25.2 , < 25.2R1-S1, 25.2R2 (semver) Unaffected: 0 , < 24.4R1 (semver) |
Date Public
2026-04-08 16:00
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CVE-2026-57054 (GCVE-0-2026-57054)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:14 – Updated: 2026-07-10 14:34
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Web filtering doesn't block specifically formatted URLs
Summary
A Use of Incorrectly-Resolved Name or Reference vulnerability in the URL filtering plugin of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass web filtering and access downstream resources that should be unreachable.
If an MX Series device is configured with web filtering, and an attacker sends a request with a specifically formatted URL, this request will get forwarded despite the system being configured to block it. In turn, an attacker can access downstream resources that are expected to be unreachable.
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2-S1,
* 25.4 versions before 25.4R1-S2, 25.4R2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110093 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2-S1 (custom) Affected: 25.4 , < 25.4R1-S2, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57032 (GCVE-0-2026-57032)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:14 – Updated: 2026-07-10 14:34
VLAI
EPSS
VEX
Title
Junos OS: EX Series: Subscribing to an unsupported telemetry sensor path causes fxpc process crash
Summary
An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS).
If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted.
The following log message can be seen when this issue happens:
agentd[<PID>]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for <sensor>
This issue affects Junos OS on
EX2300, EX3400, EX4000, EX4100 and EX4400
devices:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-236 - Improper Handling of Undefined Parameters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110092 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57030 (GCVE-0-2026-57030)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:13 – Updated: 2026-07-10 14:43
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: Flow sessions are not getting cleared leading to a DoS
Summary
A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
As part of the stateful traffic processing on SRX Series devices flows are being established, and removed when not needed anymore. During the removal process the timeout of a flow should be set to 3 seconds and consequentially the flow should be removed shortly after. Due to a race condition occurring when setting the timeout there is a chance (the exact conditions are outside the attackers control) that the timeout is instead set to a very high value of larger than 10,000 seconds:
user@host> show security flow session | match timeout
Session ID: 98784248524, Policy name: PROD-FLOW/4, HA State: Active, Timeout: 85250, Session State: Valid
This will lead to an accumulation of flows which can be observed by an ever-increasing value of invalidated sessions in the output of 'show security flow session summary':
user@host> show security flow session summary | match invalid
Invalidated sessions: 216931These sessions can't be cleared manually with the 'clear security flow session' command, which will either lead to forwarding to stop (and the system needs to be manually recovered with a reboot) or to a flowd core and automatic reboot.
This issue affects Junos OS on SRX Series:
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S1, 24.4R2-S2,
* 25.2 versions before 25.2R1-S2, 25.2R2.
This issue does not affect releases earlier than 24.2R1;
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110090 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
24.2 , < 24.2R2-S3
(custom)
Affected: 24.4 , < 24.4R2-S1 (custom) Affected: 25.2 , < 25.2R1-S2 (custom) Unaffected: 0 , < 24.2R1 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57027 (GCVE-0-2026-57027)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:08 – Updated: 2026-07-10 14:33
VLAI
EPSS
VEX
Title
Junos OS: EX4100 Series, EX4400: With sFlow configured in a VC scenario multicast traffic leads to an FPC crash
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX Series devices allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).When sFlow is configured in a Virtual Chassis (VC) scenario with EX4100 Series or EX4400 Series devices, multicast traffic which is received on one VC member and sent out on another member leads to a memory leak and ultimately an FPC crash and restart.
The leak can be monitored by watching the continuous increase of the buffer values in the output of:
user@host> show chassis fpc
This issue affects Junos OS on EX4100 Series and EX4400:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110087 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57025 (GCVE-0-2026-57025)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:07 – Updated: 2026-07-10 14:10
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning' command causes l2ald crash
Summary
A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS).
On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted.
This issue affects EX Series, QFX Series, MX Series:
Junos OS:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2,
* 24.4 versions before 24.4R1-S2.
Junos OS Evolved:
* all versions before 23.2R2-S7-EVO,
* 23.4 versions before 23.4R2-S8-EVO,
* 24.2 versions before 24.2R2-EVO,
* 24.4 versions before 24.4R1-S3-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-466 - Return of Pointer Value Outside of Expected Range
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110085 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2 (custom) Affected: 24.4 , < 24.4R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8-EVO (custom) Affected: 24.2 , < 24.2R2-EVO (custom) Affected: 24.4 , < 24.4R1-S3-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57021 (GCVE-0-2026-57021)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:05 – Updated: 2026-07-10 14:28
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: If VPN compliance-check is configured an attacker can cause http-gk process crash
Summary
An Out-of-bounds Write vulnerability in the http-gatekeeper (http-gk) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
If an SRX Series device is configured for remote-access VPN with pre-logon compliance check, a network-based attacker sending specifically formatted requests can trigger an out of bounds write leading to an http-gk process crash. This crash leads to unavailability of all services depending on the [ system services web-management ] configuration (like J-Web, remote access VPN and firewall authentication) until the process automatically restarts.
This issue affects Junos OS on SRX Series:
* 23.2 versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S1, 25.4R2.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110081 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.2 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) Affected: 25.4 , < 25.4R1-S1, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57020 (GCVE-0-2026-57020)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:05 – Updated: 2026-07-10 13:29
VLAI
EPSS
VEX
Title
Junos OS: QFX10000 Series: IPv6 multicast traffic received on non-IRB interfaces causes a multicast flood
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
On all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI) leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.
This issue affects Junos OS on QFX10000 Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4.
This issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110080 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57019 (GCVE-0-2026-57019)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:04 – Updated: 2026-07-10 13:29
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Specific traffic causes an FPC to reset
Summary
An Improper Validation of Specified Quantity in Input vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
When a specific packet is received from device in the same broadcast domain, an affected system calculates the packet size incorrectly. This causes further packet processing to fail, which triggers an FPC major error, resulting in a FPC reset impacting traffic until the FPC has automatically recovered.
Affected scenarios are: MAP-T, or non-IP traffic encapsulated in IP (e.g. MPLS over GRE).
When this issue happens the following logs can be observed:
fpc<#> CMError: /fpc/0/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_LI_INT_REG_UNROLL_TAIL_LENGTH_OVF (0x2205eb), scope: pfe, category: functional, severity: major, module: MQSS(0), type: LI: Unroll TAIL length overflow, oc_category: default
fpc<#> Performing action reset-fru for error /fpc/0/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_LI_INT_REG_UNROLL_TAIL_LENGTH_OVF (0x2205eb) in module: MQSS(0) with scope: pfe category: functional level: major, oc_category: default
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S6,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110079 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S6
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-33801 (GCVE-0-2026-33801)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:03 – Updated: 2026-07-10 13:31
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: When a specifically malformed BGP route update is received RPD crashes
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker sending a specific BGP update over an established BGP session to cause a Denial-of-Service (DoS).
Upon receipt of a specifically malformed non-inet/inet6 unicast BGP update, an RPD crash and restart is triggered, which will cause a complete service outage until routing has reconverged. The rpd crash occurs before the update can be readvertised, so there is no downstream propagation.
This issue affects:
* Junos OS versions 25.2 before 25.2R2;
* Junos OS Evolved versions 25.2 before 25.2R2-EVO.
This issue doesn't affect Junos OS versions before 25.2R1 nor Junos OS Evolved versions before 25.2R1-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110076 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
25.2 , < 25.2R2
(custom)
|
|
| Juniper Networks | Junos OS Evolved |
Affected:
25.2 , < 25.2R2-EVO
(custom)
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Date Public
2026-07-08 16:00
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CVE-2026-33799 (GCVE-0-2026-33799)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:02 – Updated: 2026-07-10 13:31
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: Receipt of a specific SNMPv3 request results in memory leak and eventual snmpd crash
Summary
An Out-of-bounds Write vulnerability in the SNMP daemon (snmpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated network-based attacker sending specific valid SNMPv3 queries to trigger a memory leak. Over time, continuous receipt of these queries will result in snmpd process memory exhaustion, resulting in a process crash and restart, impacting the ability to monitor the system via SNMP.
Memory usage can be monitored using the following command:
user@device> show system processes extensive | match snmpd
This issue affects:
Junos OS:
* all versions before 21.2R3-S8;
* from 21.4 before 21.4R3-S7;
* from 22.1 before 22.1R3-S6;
* from 22.2 before 22.2R3-S4;
* from 22.3 before 22.3R3-S3;
* from 22.4 before 22.4R3-S2;
* from 23.2 before 23.2R2;
* from 23.4 before 23.4R2.
Junos OS Evolved:
* all versions before 21.2R3-S8-EVO;
* from 21.4 before 21.4R3-S7-EVO;
* all versions of 22.1-EVO,
* from 22.2 before 22.2R3-S4-EVO;
* from 22.3 before 22.3R3-S3-EVO;
* all versions of 22.4-EVO,
* from 23.2 before 23.2R2-EVO;
* from 23.4 before 23.4R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110074 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 21.2R3-S8
(custom)
Affected: 21.4 , < 21.4R3-S7 (custom) Affected: 22.1 , < 22.1R3-S6 (custom) Affected: 22.2 , < 22.2R3-S4 (custom) Affected: 22.3 , < 22.3R3-S3 (custom) Affected: 22.4 , < 22.4R3-S2 (custom) Affected: 23.2 , < 23.2R2 (custom) Affected: 23.4 , < 23.4R2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S8-EVO
(custom)
Affected: 21.4 , < 21.4R3-S7-EVO (custom) Affected: 22.1 , < 22.1* (custom) Affected: 22.2 , < 22.2R3-S4-EVO (custom) Affected: 22.3 , < 22.3R3-S3-EVO (custom) Affected: 22.4 , < 22.4* (custom) Affected: 23.2 , < 23.2R2-EVO (custom) Affected: 23.4 , < 23.4R2-EVO (custom) |
Date Public
2026-07-08 16:00
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