{"id":"CVE-2026-90780","title":"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","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-120"],"vendor":"SIPp","product":"sipp","affected":["sipp <= 3.7.7"],"published":"2026-09-13","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:44.397","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90780","references":[{"url":"https://github.com/SIPp/sipp","label":"disclosure@vulncheck.com"},{"url":"https://github.com/SIPp/sipp/blob/v3.7.7/src/sip_parser.cpp#L164-L227","label":"disclosure@vulncheck.com"},{"url":"https://github.com/SIPp/sipp/commit/8ddfb43359703e665041a955543e07f504f80232","label":"disclosure@vulncheck.com"},{"url":"https://github.com/SIPp/sipp/pull/881","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/sipp-through-3.7.7-buffer-overflow-via-oversized-sip-header-content","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90780.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90780"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90780"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00633,"epssPercentile":0.48998,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-20T00:11:10.302315Z"},"ingestedAt":"2026-09-14T15:23:07.470Z","slug":"CVE-2026-90780","body":"## Overview\n\nSIPp 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90780.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}