CVE-2026-57185

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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 authenticated attacker may crash Asterisk through a buffer over-read in the `PJSIP MWI body parser` by sending a carefully crafted `SIP NOTIFY` request. The attacker must pass SIP authentication using either a username/password or `source IP address matching`. 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-8jw3-ccr9-xrmf", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-30T20:21:47.886566Z", "id": "CVE-2026-57185", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-10-30T20:21:55.599Z"}}]}}

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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 authenticated attacker may crash Asterisk through a buffer over-read in the `PJSIP MWI body parser` by sending a carefully crafted `SIP NOTIFY` request. The attacker must pass SIP authentication using either a username/password or `source IP address matching`. 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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-126", "description": "CWE-126: Buffer Over-read"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-170", "description": "CWE-170: Improper Null Termination"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-27T16:40:27.615Z"}}}, "cveMetadata": {"cveId": "CVE-2026-57185", "state": "PUBLISHED", "dateUpdated": "2026-10-30T20:21:55.599Z", "dateReserved": "2026-06-24T01:47:55.287Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-10-27T16:40:27.615Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "asterisk", "vendor": "asterisk", "versions": [{"status": "affected", "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"}]}, {"product": "certified-asterisk", "vendor": "asterisk", "versions": [{"status": "affected", "version": "< 20.7-cert11"}, {"status": "affected", "version": ">= 22.8-cert1-pre1, < 22.8-cert3"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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 authenticated attacker may crash Asterisk through a buffer over-read in the `PJSIP MWI body parser` by sending a carefully crafted `SIP NOTIFY` request. The attacker must pass SIP authentication using either a username/password or `source IP address matching`. 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."}], "id": "CVE-2026-57185", "lastModified": "2026-10-30T21:16:58.377", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-57185", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-30T20:21:47.886566Z", "version": "2.0.3"}}]}, "published": "2026-10-27T17:17:01.267", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/07aec894a1fdfa7fa989d3ab40fdf0dcda8005bb"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/1039bed76fa3248f58b6880e4b3f1421ef98b01f"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/1b2d99d8eb9206d37fd47115996f67fd28bd056f"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/3100a0d331affbf0995b8c57aaddb31cf3971f6e"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/57ce484a45b098de417f19265c95c64497782e36"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/919f2ffda03329c9014bedcb3c7789d38660c9ed"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/commit/dafff9fb60281817225f1ce6371a5aa2fbb967a4"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/20.20.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/21.12.3"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/22.10.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/23.4.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-8jw3-ccr9-xrmf"}, {"source": "security-advisories@github.com", "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-126"}, {"lang": "en", "value": "CWE-170"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "asterisk: Asterisk: Denial of Service via crafted SIP NOTIFY request", "id": "2562102", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562102"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["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 authenticated attacker may crash Asterisk through a buffer over-read in the `PJSIP MWI body parser` by sending a carefully crafted `SIP NOTIFY` request. The attacker must pass SIP authentication using either a username/password or `source IP address matching`. 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.", "A flaw was found in Asterisk. An authenticated remote attacker can trigger a buffer over-read in the PJSIP Message Waiting Indication (MWI) body parser by sending a specially crafted Session Initiation Protocol (SIP) NOTIFY request. Successful exploitation causes Asterisk to crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-57185", "public_date": "2026-10-27T16:40:27Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-57185\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-57185\nhttps://github.com/asterisk/asterisk/commit/07aec894a1fdfa7fa989d3ab40fdf0dcda8005bb\nhttps://github.com/asterisk/asterisk/commit/1039bed76fa3248f58b6880e4b3f1421ef98b01f\nhttps://github.com/asterisk/asterisk/commit/1b2d99d8eb9206d37fd47115996f67fd28bd056f\nhttps://github.com/asterisk/asterisk/commit/3100a0d331affbf0995b8c57aaddb31cf3971f6e\nhttps://github.com/asterisk/asterisk/commit/57ce484a45b098de417f19265c95c64497782e36\nhttps://github.com/asterisk/asterisk/commit/919f2ffda03329c9014bedcb3c7789d38660c9ed\nhttps://github.com/asterisk/asterisk/commit/dafff9fb60281817225f1ce6371a5aa2fbb967a4\nhttps://github.com/asterisk/asterisk/releases/tag/20.20.1\nhttps://github.com/asterisk/asterisk/releases/tag/21.12.3\nhttps://github.com/asterisk/asterisk/releases/tag/22.10.1\nhttps://github.com/asterisk/asterisk/releases/tag/23.4.1\nhttps://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11\nhttps://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3\nhttps://github.com/asterisk/asterisk/security/advisories/GHSA-8jw3-ccr9-xrmf\nhttps://github.com/asterisk/asterisk/tree/24.0.0-pre1"], "statement": "This flaw is rated as Moderate because exploitation requires prior SIP authentication and is limited to inducing a denial of service through an application crash without compromising confidentiality or integrity. Furthermore, Asterisk is not packaged or shipped in Red Hat Enterprise Linux, leaving standard deployments unaffected.", "threat_severity": "Moderate"}

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