{"id":"CVE-2026-90780","state":"PUBLISHED","title":"SIPp through 3.7.7 Buffer Overflow via Oversized SIP Header Content","description":"SIPp through 3.7.7 contains a buffer overflow vulnerability in the get_header() function in src/sip_parser.cpp when processing SIP messages with header content exceeding 20,490 bytes. Unauthenticated remote attackers can send crafted SIP messages with oversized headers to overflow the static buffer and crash the process.","publishedAt":"2026-09-13T11:42:29.104Z","updatedAt":"2026-09-24T14:22:00.064Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["SIPp sipp"],"affected":[{"vendor":"SIPp","product":"sipp","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.7.7","versionType":"semver"}],"repo":"https://github.com/SIPp/sipp"}],"references":["https://github.com/SIPp/sipp/pull/881","https://github.com/SIPp/sipp/commit/8ddfb43359703e665041a955543e07f504f80232","https://github.com/SIPp/sipp/blob/v3.7.7/src/sip_parser.cpp#L164-L227","https://github.com/SIPp/sipp","https://www.vulncheck.com/advisories/sipp-through-3.7.7-buffer-overflow-via-oversized-sip-header-content"],"weaknesses":["CWE-120"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90780.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90780","state":"PUBLISHED","datePublished":"2026-09-13T11:42:29.104Z","dateUpdated":"2026-09-24T14:22:00.064Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-13T11:15:58.849Z"},"containers":{"cna":{"title":"SIPp through 3.7.7 Buffer Overflow via Oversized SIP Header Content","descriptions":[{"lang":"en","value":"SIPp through 3.7.7 contains a buffer overflow vulnerability in the get_header() function in src/sip_parser.cpp when processing SIP messages with header content exceeding 20,490 bytes. Unauthenticated remote attackers can send crafted SIP messages with oversized headers to overflow the static buffer and crash the process."}],"affected":[{"vendor":"SIPp","product":"sipp","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.7.7","versionType":"semver"}],"repo":"https://github.com/SIPp/sipp"}],"references":[{"url":"https://github.com/SIPp/sipp/pull/881","name":"Pull Request #881","tags":["patch","issue-tracking"]},{"url":"https://github.com/SIPp/sipp/commit/8ddfb43359703e665041a955543e07f504f80232","name":"Patch Commit","tags":["patch"]},{"url":"https://github.com/SIPp/sipp/blob/v3.7.7/src/sip_parser.cpp#L164-L227","name":"Unbounded sprintf concatenation in get_header() at v3.7.7","tags":["technical-description"]},{"url":"https://github.com/SIPp/sipp","tags":["product"]},{"url":"https://www.vulncheck.com/advisories/sipp-through-3.7.7-buffer-overflow-via-oversized-sip-header-content","name":"VulnCheck Advisory: SIPp through 3.7.7 Buffer Overflow via Oversized SIP Header Content","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","lang":"en","description":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-24T14:22:00.064Z"},"datePublic":"2026-09-08T00:00:00.000Z","credits":[{"lang":"en","value":"Tristan Madani","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-90780","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-20T00:11:10.302315Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-20T00:35:31.587Z"}}]}}}