Common Weakness Enumeration
CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6541 vulnerabilities reference this CWE, most recent first.
CVE-2026-81490 (GCVE-0-2026-81490)
Vulnerability from cvelistv5 – Published: 2026-08-28 20:10 – Updated: 2026-08-28 20:10
VLAI
EPSS
VEX
Title
MongoDB Connector for BI Improper Error Handling During Schema Sampling May Cause Loss of SQL Service
Summary
A database user able to create a view in a namespace that MongoDB Connector for BI samples can cause the schema-sampling routine to stop functioning by defining a view whose evaluation reliably fails. The sampling logic classifies the resulting server message as transient and, after the configured retries are exhausted, proceeds without a valid result, ending the schema refresh routine. The mongosqld process continues running without a usable schema, so SQL clients are unable to obtain results until an operator removes the view or excludes its namespace from sampling.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | BI Connector |
Affected:
0 , < 2.14.31
(semver)
|
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "BI Connector",
"vendor": "MongoDB",
"versions": [
{
"lessThan": "2.14.31",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A database user able to create a view in a namespace that MongoDB Connector for BI samples can cause the schema-sampling routine to stop functioning by defining a view whose evaluation reliably fails. The sampling logic classifies the resulting server message as transient and, after the configured retries are exhausted, proceeds without a valid result, ending the schema refresh routine. The mongosqld process continues running without a usable schema, so SQL clients are unable to obtain results until an operator removes the view or excludes its namespace from sampling."
}
],
"value": "A database user able to create a view in a namespace that MongoDB Connector for BI samples can cause the schema-sampling routine to stop functioning by defining a view whose evaluation reliably fails. The sampling logic classifies the resulting server message as transient and, after the configured retries are exhausted, proceeds without a valid result, ending the schema refresh routine. The mongosqld process continues running without a usable schema, so SQL clients are unable to obtain results until an operator removes the view or excludes its namespace from sampling."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-28T20:10:38.565Z",
"orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"shortName": "mongodb"
},
"references": [
{
"url": "https://www.mongodb.com/docs/bi-connector/current/release-notes/"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "MongoDB Connector for BI Improper Error Handling During Schema Sampling May Cause Loss of SQL Service",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb",
"assignerShortName": "mongodb",
"cveId": "CVE-2026-81490",
"datePublished": "2026-08-28T20:10:38.565Z",
"dateReserved": "2026-08-26T20:48:19.853Z",
"dateUpdated": "2026-08-28T20:10:38.565Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-78148 (GCVE-0-2026-78148)
Vulnerability from cvelistv5 – Published: 2026-08-23 23:15 – Updated: 2026-08-24 17:49
VLAI
EPSS
VEX
Title
ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp graph_compute null pointer dereference
Summary
A vulnerability was determined in ggml-org llama.cpp bec4772f6. This affects the function rpc_server::graph_compute of the file ggml/src/ggml-rpc/ggml-rpc.cpp of the component ggml-RPC Server. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The pull request to fix this issue awaits acceptance.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 17:48 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/394535 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/394535/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-78148 | third-party-advisory |
| https://vuldb.com/submit/882535 | third-party-advisory |
| https://github.com/ggml-org/llama.cpp/issues/25299 | issue-tracking |
| https://github.com/ggml-org/llama.cpp/pull/25670 | issue-trackingpatch |
| https://github.com/ggml-org/llama.cpp/ | product |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-78148",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-24T17:48:22.841256Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-24T17:49:30.355Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:ggml-org:llama.cpp:*:*:*:*:*:*:*:*"
],
"modules": [
"ggml-RPC Server"
],
"product": "llama.cpp",
"vendor": "ggml-org",
"versions": [
{
"status": "affected",
"version": "bec4772f6"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "m00dy (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB CNA Team"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was determined in ggml-org llama.cpp bec4772f6. This affects the function rpc_server::graph_compute of the file ggml/src/ggml-rpc/ggml-rpc.cpp of the component ggml-RPC Server. Executing a manipulation can lead to null pointer dereference. The attack may be launched remotely. The pull request to fix this issue awaits acceptance."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 5,
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-404",
"description": "Denial of Service",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-23T23:15:11.836Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-394535 | ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp graph_compute null pointer dereference",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/394535"
},
{
"name": "VDB-394535 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/394535/cti"
},
{
"name": "CVE-2026-78148 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-78148"
},
{
"name": "Submit #882535 | ggml-org llama.cpp master bec4772f6 Denial of Service",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/882535"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/ggml-org/llama.cpp/issues/25299"
},
{
"tags": [
"issue-tracking",
"patch"
],
"url": "https://github.com/ggml-org/llama.cpp/pull/25670"
},
{
"tags": [
"product"
],
"url": "https://github.com/ggml-org/llama.cpp/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-23T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-08-23T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-08-23T08:44:33.000Z",
"value": "VulDB entry last update"
}
],
"title": "ggml-org llama.cpp ggml-RPC Server ggml-rpc.cpp graph_compute null pointer dereference",
"x_generator": [
"VulDB PVTS v202608"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-78148",
"datePublished": "2026-08-23T23:15:11.836Z",
"dateReserved": "2026-08-23T06:39:09.376Z",
"dateUpdated": "2026-08-24T17:49:30.355Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-77217 (GCVE-0-2026-77217)
Vulnerability from cvelistv5 – Published: 2026-08-28 15:34 – Updated: 2026-08-28 15:34
VLAI
EPSS
VEX
Title
PLANET GS-4210-16P2S Stack Buffer Overflow and NULL Pointer Dereference via dispatcher.cgi RADIUS Handlers
Summary
PLANET GS-4210-16P2S firmware before 3.441b260626 contains authenticated stack buffer overflow and null pointer dereference vulnerabilities in /cgi-bin/dispatcher.cgi. The web_radiusSrv*_post family of handlers copies the radKey, radKey_0, radDftParamKey, radName, and radIp POST parameters into fixed-size stack buffers without length validation, and additionally dereferences radName and radIp without verifying their presence in the request. A remote authenticated attacker can send crafted requests to crash the CGI process or web management service, resulting in denial of service.
Severity
4.9 (Medium)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.planet.com.tw/en/support/security-adv… | vendor-advisorypatch |
| https://www.vulncheck.com/advisories/planet-gs-42… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PLANET Technology Corp. | PLANET GS-4210-16P2S |
Affected:
0 , < 3.441b260626
(custom)
|
Date Public
2026-08-27 00:00
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "PLANET GS-4210-16P2S",
"vendor": "PLANET Technology Corp.",
"versions": [
{
"lessThan": "3.441b260626",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Jincheng Wang (@winmt)"
},
{
"lang": "en",
"type": "finder",
"value": "Professor Le Yu of Nanjing University of Posts and Telecommunications"
},
{
"lang": "en",
"type": "finder",
"value": "Professor Xiapu Luo of The Hong Kong Polytechnic University"
}
],
"datePublic": "2026-08-27T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "PLANET GS-4210-16P2S firmware before 3.441b260626 contains authenticated stack buffer overflow and null pointer dereference vulnerabilities in /cgi-bin/dispatcher.cgi. The web_radiusSrv*_post family of handlers copies the radKey, radKey_0, radDftParamKey, radName, and radIp POST parameters into fixed-size stack buffers without length validation, and additionally dereferences radName and radIp without verifying their presence in the request. A remote authenticated attacker can send crafted requests to crash the CGI process or web management service, resulting in denial of service."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "HIGH",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 4.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
},
{
"cweId": "CWE-476",
"description": "NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-28T15:34:19.474Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"name": "Vendor Advisory",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://www.planet.com.tw/en/support/security-advisory/10"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/planet-gs-4210-16p2s-stack-buffer-overflow-and-null-pointer-dereference-via-dispatcher-cgi-radius-handlers"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "PLANET GS-4210-16P2S Stack Buffer Overflow and NULL Pointer Dereference via dispatcher.cgi RADIUS Handlers",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-77217",
"datePublished": "2026-08-28T15:34:19.474Z",
"dateReserved": "2026-08-20T18:25:46.943Z",
"dateUpdated": "2026-08-28T15:34:19.474Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76928 (GCVE-0-2026-76928)
Vulnerability from cvelistv5 – Published: 2026-08-19 23:00 – Updated: 2026-08-20 16:27
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in Wireshark
Summary
X.509IF protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 16:03 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.8
(semver)
Affected: 4.4.0 , < 4.4.18 (semver) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76928",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T16:03:52.176073Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T16:27:30.441Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Wireshark",
"vendor": "Wireshark Foundation",
"versions": [
{
"lessThan": "4.6.8",
"status": "affected",
"version": "4.6.0",
"versionType": "semver"
},
{
"lessThan": "4.4.18",
"status": "affected",
"version": "4.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Aisle Research (Dmitrijs Trizna, Luigino Camastra, Ze Sheng (O2Lab \u0026 TAMU), Igor Morgenstern)"
}
],
"descriptions": [
{
"lang": "en",
"value": "X.509IF protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T23:00:16.512Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"url": "https://www.wireshark.org/security/wnpa-sec-2026-87.html"
},
{
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21469"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 4.6.8 or above"
}
],
"title": "NULL Pointer Dereference in Wireshark"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-76928",
"datePublished": "2026-08-19T23:00:16.512Z",
"dateReserved": "2026-08-19T22:59:56.519Z",
"dateUpdated": "2026-08-20T16:27:30.441Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76927 (GCVE-0-2026-76927)
Vulnerability from cvelistv5 – Published: 2026-08-19 23:00 – Updated: 2026-08-20 15:26
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in Wireshark
Summary
H.245 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:06 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.8
(semver)
Affected: 4.4.0 , < 4.4.18 (semver) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76927",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T15:06:13.039044Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T15:26:28.268Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Wireshark",
"vendor": "Wireshark Foundation",
"versions": [
{
"lessThan": "4.6.8",
"status": "affected",
"version": "4.6.0",
"versionType": "semver"
},
{
"lessThan": "4.4.18",
"status": "affected",
"version": "4.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Aisle Research (Dmitrijs Trizna, Luigino Camastra, Ze Sheng (O2Lab \u0026 TAMU), Igor Morgenstern)"
}
],
"descriptions": [
{
"lang": "en",
"value": "H.245 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T23:00:11.516Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"url": "https://www.wireshark.org/security/wnpa-sec-2026-77.html"
},
{
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21447"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 4.6.8 or above"
}
],
"title": "NULL Pointer Dereference in Wireshark"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-76927",
"datePublished": "2026-08-19T23:00:11.516Z",
"dateReserved": "2026-08-19T22:59:51.521Z",
"dateUpdated": "2026-08-20T15:26:28.268Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76922 (GCVE-0-2026-76922)
Vulnerability from cvelistv5 – Published: 2026-08-19 22:45 – Updated: 2026-08-20 15:26
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in Wireshark
Summary
Bluetooth BR/EDR FHS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:07 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.8
(semver)
Affected: 4.4.0 , < 4.4.18 (semver) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76922",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T15:07:30.323836Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T15:26:29.305Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Wireshark",
"vendor": "Wireshark Foundation",
"versions": [
{
"lessThan": "4.6.8",
"status": "affected",
"version": "4.6.0",
"versionType": "semver"
},
{
"lessThan": "4.4.18",
"status": "affected",
"version": "4.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Aisle Research (Dmitrijs Trizna, Luigino Camastra, Ze Sheng (O2Lab \u0026 TAMU), Igor Morgenstern)"
}
],
"descriptions": [
{
"lang": "en",
"value": "Bluetooth BR/EDR FHS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T22:45:25.530Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"url": "https://www.wireshark.org/security/wnpa-sec-2026-80.html"
},
{
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21452"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 4.6.8 or above"
}
],
"title": "NULL Pointer Dereference in Wireshark"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-76922",
"datePublished": "2026-08-19T22:45:25.530Z",
"dateReserved": "2026-08-19T22:44:35.540Z",
"dateUpdated": "2026-08-20T15:26:29.305Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76905 (GCVE-0-2026-76905)
Vulnerability from cvelistv5 – Published: 2026-08-21 20:43 – Updated: 2026-08-25 14:21
VLAI
EPSS
VEX
Title
kin-openapi openai3filter: nil-pointer panic in ConvertErrors on malformed multipart/form-data body enables unauthenticated DoS
Summary
kin-openapi is a Go project for handling OpenAPI files. From 0.10.0 until 0.141.0, openapi3filter.convertParseError in openapi3filter/validation_error_encoder.go dereferences e.Parameter.In without checking whether e.Parameter is nil. A malformed non-string scalar field in a multipart/form-data request body produces a nested ParseError with a nil RequestError.Parameter, and applications that render the validation error through openapi3filter.ConvertErrors or ValidationErrorEncoder panic. An unauthenticated client can repeatedly send such requests to deny service when the application lacks a recovery boundary. JSON request bodies and applications that do not use these error-rendering helpers are not affected. This issue is fixed in version 0.141.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:21 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/getkin/kin-openapi/security/ad… | x_refsource_CONFIRM |
| https://github.com/getkin/kin-openapi/commit/1d0a… | x_refsource_MISC |
| https://github.com/getkin/kin-openapi/releases/ta… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| getkin | kin-openapi |
Affected:
>= 0.10.0, < 0.141.0
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76905",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T14:21:31.513270Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T14:21:42.702Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-mmfr-pmjx-hw9w"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "kin-openapi",
"vendor": "getkin",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.10.0, \u003c 0.141.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "kin-openapi is a Go project for handling OpenAPI files. From 0.10.0 until 0.141.0, openapi3filter.convertParseError in openapi3filter/validation_error_encoder.go dereferences e.Parameter.In without checking whether e.Parameter is nil. A malformed non-string scalar field in a multipart/form-data request body produces a nested ParseError with a nil RequestError.Parameter, and applications that render the validation error through openapi3filter.ConvertErrors or ValidationErrorEncoder panic. An unauthenticated client can repeatedly send such requests to deny service when the application lacks a recovery boundary. JSON request bodies and applications that do not use these error-rendering helpers are not affected. This issue is fixed in version 0.141.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T20:43:07.066Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-mmfr-pmjx-hw9w",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/getkin/kin-openapi/security/advisories/GHSA-mmfr-pmjx-hw9w"
},
{
"name": "https://github.com/getkin/kin-openapi/commit/1d0a337c9b1570fab283be8a04c8af6e43b9a22c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/getkin/kin-openapi/commit/1d0a337c9b1570fab283be8a04c8af6e43b9a22c"
},
{
"name": "https://github.com/getkin/kin-openapi/releases/tag/v0.141.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/getkin/kin-openapi/releases/tag/v0.141.0"
}
],
"source": {
"advisory": "GHSA-mmfr-pmjx-hw9w",
"discovery": "UNKNOWN"
},
"title": "kin-openapi openai3filter: nil-pointer panic in ConvertErrors on malformed multipart/form-data body enables unauthenticated DoS"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-76905",
"datePublished": "2026-08-21T20:43:07.066Z",
"dateReserved": "2026-08-19T22:43:14.891Z",
"dateUpdated": "2026-08-25T14:21:42.702Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76881 (GCVE-0-2026-76881)
Vulnerability from cvelistv5 – Published: 2026-08-19 22:34 – Updated: 2026-08-20 15:00
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in Wireshark
Summary
CMS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Severity
4.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:00 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wireshark Foundation | Wireshark |
Affected:
4.6.0 , < 4.6.8
(semver)
Affected: 4.4.0 , < 4.4.18 (semver) |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76881",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T15:00:37.720955Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T15:00:57.084Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21446"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Wireshark",
"vendor": "Wireshark Foundation",
"versions": [
{
"lessThan": "4.6.8",
"status": "affected",
"version": "4.6.0",
"versionType": "semver"
},
{
"lessThan": "4.4.18",
"status": "affected",
"version": "4.4.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Aisle Research (Dmitrijs Trizna, Luigino Camastra, Ze Sheng (O2Lab \u0026 TAMU), Igor Morgenstern)"
}
],
"descriptions": [
{
"lang": "en",
"value": "CMS protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476: NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T22:34:59.927Z",
"orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"shortName": "GitLab"
},
"references": [
{
"url": "https://www.wireshark.org/security/wnpa-sec-2026-76.html"
},
{
"url": "https://gitlab.com/wireshark/wireshark/-/work_items/21446"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to version 4.6.8 or above"
}
],
"title": "NULL Pointer Dereference in Wireshark"
}
},
"cveMetadata": {
"assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
"assignerShortName": "GitLab",
"cveId": "CVE-2026-76881",
"datePublished": "2026-08-19T22:34:59.927Z",
"dateReserved": "2026-08-19T22:34:09.937Z",
"dateUpdated": "2026-08-20T15:00:57.084Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76650 (GCVE-0-2026-76650)
Vulnerability from cvelistv5 – Published: 2026-08-28 20:19 – Updated: 2026-08-28 20:19
VLAI
EPSS
VEX
Title
Pre-Authentication NULL Pointer Dereference in UPnP SOAP State Variable Query Processing in TP-Link TL-WR841N
Summary
A NULL
pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing
SOAP state variable query requests. A specially crafted SOAP query may trigger
unexpected termination or instability of the process hosting the UPnP service.
Successful
exploitation may result in a denial-of-service condition affecting UPnP
discovery, state query, or related management functionality until the affected
process is restarted or the device is rebooted.
Severity
CWE
- CWE-476 - NULL pointer dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/us/support/download/tl-wr… | patch |
| https://www.tp-link.com/en/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/faq/5270/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link System Inc. | TL-WR841N v14 |
Affected:
0 , < TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478
(custom)
Affected: 0 , < TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588 (custom) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "TL-WR841N v14",
"vendor": "TP-Link System Inc.",
"versions": [
{
"lessThan": "TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Jincheng Wang (@winmt) from Nanjing University of Posts and Telecommunications"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003e\u003cspan\u003eA NULL\npointer dereference vulnerability exists in\u0026nbsp;\u003c/span\u003e\u003cspan\u003eTL-WR841N v14\u003c/span\u003e\u003cspan\u003e\u0026nbsp;in\u003c/span\u003e\u003cspan\u003e\u0026nbsp;the UPnP service when processing\nSOAP state variable query requests. A specially crafted SOAP query may trigger\nunexpected termination or instability of the process hosting the UPnP service.\u003c/span\u003e\u003c/p\u003e\u003cdiv\u003e\n\n\u003cp\u003eSuccessful\nexploitation may result in a denial-of-service condition affecting UPnP\ndiscovery, state query, or related management functionality until the affected\nprocess is restarted or the device is rebooted.\u003c/p\u003e\u003c/div\u003e"
}
],
"value": "A NULL\npointer dereference vulnerability exists in\u00a0TL-WR841N v14\u00a0in\u00a0the UPnP service when processing\nSOAP state variable query requests. A specially crafted SOAP query may trigger\nunexpected termination or instability of the process hosting the UPnP service.\n\n\n\n\n\nSuccessful\nexploitation may result in a denial-of-service condition affecting UPnP\ndiscovery, state query, or related management functionality until the affected\nprocess is restarted or the device is rebooted."
}
],
"impacts": [
{
"capecId": "CAPEC-153",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-153 Input Data Manipulation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL pointer dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-28T20:19:03.475Z",
"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"shortName": "TPLink"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.tp-link.com/us/support/faq/5270/"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Pre-Authentication NULL Pointer Dereference in UPnP SOAP State Variable Query Processing in TP-Link TL-WR841N",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"assignerShortName": "TPLink",
"cveId": "CVE-2026-76650",
"datePublished": "2026-08-28T20:19:03.475Z",
"dateReserved": "2026-08-19T15:49:30.548Z",
"dateUpdated": "2026-08-28T20:19:03.475Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-76649 (GCVE-0-2026-76649)
Vulnerability from cvelistv5 – Published: 2026-08-28 20:18 – Updated: 2026-08-28 20:18
VLAI
EPSS
VEX
Title
Pre-Authentication NULL Pointer Dereference in UPnP SOAP Action Request Processing in TP-Link TL-WR841N
Summary
A NULL
pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.
Successful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.
Severity
CWE
- CWE-476 - NULL pointer dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/us/support/download/tl-wr… | patch |
| https://www.tp-link.com/en/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/faq/5270/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link System Inc. | TL-WR841N v14 |
Affected:
0 , < TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478
(custom)
Affected: 0 , < TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588 (custom) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "TL-WR841N v14",
"vendor": "TP-Link System Inc.",
"versions": [
{
"lessThan": "TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"lessThan": "TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Jincheng Wang (@winmt) from Nanjing University of Posts and Telecommunications"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eA NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP\u0026nbsp;\u003cspan\u003eservice when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.\u003c/span\u003e\u003c/p\u003e\u003cp\u003e\n\n\u003c/p\u003e\u003cdiv\u003eSuccessful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.\u003c/div\u003e"
}
],
"value": "A NULL\npointer dereference vulnerability exists in TL-WR841N v14 in the UPnP\u00a0service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.\n\n\n\n\n\n\n\nSuccessful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted."
}
],
"impacts": [
{
"capecId": "CAPEC-153",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-153 Input Data Manipulation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"exploitMaturity": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "LOW",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL pointer dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-28T20:18:57.764Z",
"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"shortName": "TPLink"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware"
},
{
"tags": [
"patch"
],
"url": "https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.tp-link.com/us/support/faq/5270/"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Pre-Authentication NULL Pointer Dereference in UPnP SOAP Action Request Processing in TP-Link TL-WR841N",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
"assignerShortName": "TPLink",
"cveId": "CVE-2026-76649",
"datePublished": "2026-08-28T20:18:57.764Z",
"dateReserved": "2026-08-19T15:49:30.548Z",
"dateUpdated": "2026-08-28T20:18:57.764Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation MIT-56
Implementation
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Requirements
Select a programming language that is not susceptible to these issues.
Mitigation
Implementation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Architecture and Design
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Implementation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.