{"id":"CVE-2021-32611","aliases":["EUVD-2021-19449","GHSA-f98p-q24c-xw97","UBUNTU-CVE-2021-32611"],"status":"published","title":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0...","description":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01074,"percentile":0.65368,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2021-05-12T15:15:53Z","modified":"2026-11-08T02:30:40Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"libexosip2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"libexosip2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0-2.1ubuntu1","4.1.0-2.2~build1"]}],"products":[{"vendor":"antisip","product":"exosip2"}],"references":[{"url":"http://git.savannah.nongnu.org/cgit/exosip.git/commit/?id=f2ed389fe84613512cc560127883e51e6cf8c054","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32611"},{"url":"https://github.com/advisories/GHSA-f98p-q24c-xw97"},{"url":"https://ubuntu.com/security/CVE-2021-32611","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-32611","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-32611","description":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.","status":"published","published":"2021-05-12T15:15:53Z","modified":"2024-08-03T23:25:30.91Z","updated_at":"2026-11-02T14:33:07.014772Z"}],"euvd":[{"id":"EUVD-2021-19449","description":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.","status":"published","published":"2021-05-12T15:15:53Z","modified":"2024-08-03T23:25:30Z","updated_at":"2026-11-03T03:24:36.41075Z"}],"ghsa":[{"id":"GHSA-f98p-q24c-xw97","title":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0...","description":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.","status":"published","published":"2022-05-24T19:02:12Z","modified":"2023-01-29T05:06:15Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:45:59.056416Z"}],"nvd":[{"id":"CVE-2021-32611","description":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.","status":"published","published":"2021-05-12T16:15:08.373Z","modified":"2026-06-17T03:53:16.153Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:53.343329Z"}],"osv":[{"id":"CVE-2021-32611","description":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.","status":"published","published":"2021-05-12T16:15:08.373Z","modified":"2026-11-08T02:30:40.180343856Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-08T02:58:36.19888Z"},{"id":"UBUNTU-CVE-2021-32611","description":"A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.","status":"published","published":"2021-05-12T16:15:00Z","modified":"2026-04-22T12:54:13.418622Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:27.332852Z"}]}}