{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-57160", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-24T01:45:48.698Z", "datePublished": "2026-09-04T17:11:29.344Z", "dateUpdated": "2026-09-08T17:33:34.357Z"}, "containers": {"cna": {"title": "PJSIP: SIP message header buffer overflow", "problemTypes": [{"descriptions": [{"cweId": "CWE-193", "lang": "en", "description": "CWE-193: Off-by-one Error", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/pjsip/pjproject/security/advisories/GHSA-277r-3q2j-mxcw", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/pjsip/pjproject/security/advisories/GHSA-277r-3q2j-mxcw"}, {"name": "https://github.com/pjsip/pjproject/commit/d6a0e7f76611c3a6f530ee051e3e7a622bb1748c", "tags": ["x_refsource_MISC"], "url": "https://github.com/pjsip/pjproject/commit/d6a0e7f76611c3a6f530ee051e3e7a622bb1748c"}], "affected": [{"vendor": "pjsip", "product": "pjproject", "versions": [{"version": "< d6a0e7f76611c3a6f530ee051e3e7a622bb1748c", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-04T17:11:29.344Z"}, "descriptions": [{"lang": "en", "value": "PJSIP is a free and open source multimedia communication library written in C. Prior to commit d6a0e7f, a buffer overflow can occur in pjsip_generic_array_hdr_print() in pjsip/src/pjsip/sip_msg.c, the function that serializes generic array headers (such as Allow, Require, Supported, and Unsupported). Under certain output-buffer boundary conditions the function can write one byte past the end of the buffer. This is reachable mainly in applications that parse and re-serialize incoming SIP requests \u2014 for example a proxy, SBC, or B2BUA \u2014 where a remote peer can influence the serialized message. The out-of-bounds write is a single fixed byte; code execution and information disclosure are not demonstrated, and in typical pool-based allocations the byte falls within allocation slack. This issue has been patched via commit d6a0e7f."}], "source": {"advisory": "GHSA-277r-3q2j-mxcw", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-08T16:50:27.194449Z", "id": "CVE-2026-57160", "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": "2026-09-08T17:33:34.357Z"}}]}}

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