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vuln-cve/data/2026/57xxx/CVE-2026-57191.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-57191",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-24T02:00:46.799Z",
"datePublished": "2026-10-27T21:32:23.714Z",
"dateUpdated": "2026-11-02T19:45:36.758Z"
},
"containers": {
"cna": {
"title": "Asterisk: Stack buffer overflow in MWI NOTIFY Message-Account parsing",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"lang": "en",
"description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-787",
"lang": "en",
"description": "CWE-787: Out-of-bounds Write",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/asterisk/asterisk/security/advisories/GHSA-589g-qgf8-m6mx",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-589g-qgf8-m6mx"
},
{
"name": "https://github.com/asterisk/asterisk/commit/0e89514084490070c5ecee419ec5ee37b7c49528",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/commit/0e89514084490070c5ecee419ec5ee37b7c49528"
},
{
"name": "https://github.com/asterisk/asterisk/commit/647b35c3cfd4a2cc3b1fb7560b085feba5c24b4b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/commit/647b35c3cfd4a2cc3b1fb7560b085feba5c24b4b"
},
{
"name": "https://github.com/asterisk/asterisk/commit/7a1ffcdf38cc76d1c4eae51651667f3fd4548ab0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/commit/7a1ffcdf38cc76d1c4eae51651667f3fd4548ab0"
},
{
"name": "https://github.com/asterisk/asterisk/commit/b4be3bd67ce4ac35b94fbfa860cdd9e1c906610b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/commit/b4be3bd67ce4ac35b94fbfa860cdd9e1c906610b"
},
{
"name": "https://github.com/asterisk/asterisk/commit/b5281828dad7d44658439ba6393fe6be3328a4bd",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/commit/b5281828dad7d44658439ba6393fe6be3328a4bd"
},
{
"name": "https://github.com/asterisk/asterisk/commit/dca516f6d895e8867d48fa56b6ce7f05b6f7457a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/commit/dca516f6d895e8867d48fa56b6ce7f05b6f7457a"
},
{
"name": "https://github.com/asterisk/asterisk/commit/ee1b66a5e40733ba0b9fad7fc4d032cabbe1dd75",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/commit/ee1b66a5e40733ba0b9fad7fc4d032cabbe1dd75"
},
{
"name": "https://github.com/asterisk/asterisk/releases/tag/20.20.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/releases/tag/20.20.1"
},
{
"name": "https://github.com/asterisk/asterisk/releases/tag/21.12.3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/releases/tag/21.12.3"
},
{
"name": "https://github.com/asterisk/asterisk/releases/tag/22.10.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/releases/tag/22.10.1"
},
{
"name": "https://github.com/asterisk/asterisk/releases/tag/23.4.1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/releases/tag/23.4.1"
},
{
"name": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11"
},
{
"name": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"
},
{
"name": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1"
}
],
"affected": [
{
"vendor": "asterisk",
"product": "asterisk",
"versions": [
{
"version": "< 20.20.1",
"status": "affected"
},
{
"version": ">= 21.0.0-pre1, < 21.12.3",
"status": "affected"
},
{
"version": ">= 22.0.0-pre1, < 22.10.1",
"status": "affected"
},
{
"version": ">= 23.0.0-pre1, < 23.4.1",
"status": "affected"
}
]
},
{
"vendor": "asterisk",
"product": "certified-asterisk",
"versions": [
{
"version": "< 20.7-cert11",
"status": "affected"
},
{
"version": ">= 22.8-cert1-pre1, < 22.8-cert3",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-10-27T21:32:23.714Z"
},
"descriptions": [
{
"lang": "en",
"value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an unbounded `sscanf` in `res_pjsip_pubsub` when parsing the `MWI NOTIFY` `Message-Account` field may allow an unauthenticated attacker to send a carefully crafted packet that causes a stack buffer overflow and corrupts the underlying transport, permanently disabling all SIP functionality. An Asterisk restart is required to restore full operation. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3."
}
],
"source": {
"advisory": "GHSA-589g-qgf8-m6mx",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-11-02T19:45:27.310579Z",
"id": "CVE-2026-57191",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-02T19:45:36.758Z"
}
}
]
}
}
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