{"id":"CVE-2026-28799","state":"PUBLISHED","title":"PJSIP: Heap use-after-free in PJSIP presence subscription termination handler","description":"PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework (evsub.c) that is triggered during presence unsubscription (SUBSCRIBE with Expires=0). This issue has been patched in version 2.17.","publishedAt":"2026-03-06T06:36:55.109Z","updatedAt":"2026-03-09T19:50:33.494Z","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":"GitHub_M"},"assigner":"GitHub_M","products":["pjsip pjproject"],"affected":[{"vendor":"pjsip","product":"pjproject","versions":[{"version":"< 2.17","status":"affected"}]}],"references":["https://github.com/pjsip/pjproject/security/advisories/GHSA-8fj4-fv9f-hjpc","https://github.com/pjsip/pjproject/commit/e06ff6c64741cc1675fd3296615910f532f6b1a1"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/28xxx/CVE-2026-28799.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-28799","state":"PUBLISHED","datePublished":"2026-03-06T06:36:55.109Z","dateUpdated":"2026-03-09T19:50:33.494Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-03T14:25:19.245Z"},"containers":{"cna":{"title":"PJSIP: Heap use-after-free in PJSIP presence subscription termination handler","descriptions":[{"lang":"en","value":"PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap use-after-free vulnerability exists in PJSIP's event subscription framework (evsub.c) that is triggered during presence unsubscription (SUBSCRIBE with Expires=0). This issue has been patched in version 2.17."}],"affected":[{"vendor":"pjsip","product":"pjproject","versions":[{"version":"< 2.17","status":"affected"}]}],"references":[{"url":"https://github.com/pjsip/pjproject/security/advisories/GHSA-8fj4-fv9f-hjpc","name":"https://github.com/pjsip/pjproject/security/advisories/GHSA-8fj4-fv9f-hjpc","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/pjsip/pjproject/commit/e06ff6c64741cc1675fd3296615910f532f6b1a1","name":"https://github.com/pjsip/pjproject/commit/e06ff6c64741cc1675fd3296615910f532f6b1a1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"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","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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-416","lang":"en","description":"CWE-416: Use After Free","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-06T06:36:55.109Z"},"source":{"advisory":"GHSA-8fj4-fv9f-hjpc","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-09T19:50:23.183687Z","id":"CVE-2026-28799","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-09T19:50:33.494Z"}}]}}}