{"id":"CVE-2021-43610","aliases":["EUVD-2021-30524","GHSA-68x6-p7v3-xxqm"],"status":"published","title":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From...","description":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From header (request URI without a parameter) in an unauthenticated SIP message, a different issue than CVE-2021-33056.","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":0.01191,"percentile":0.68373,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-444"],"published":"2021-11-12T21:53:49Z","modified":"2026-10-20T14:34:29Z","products":[{"vendor":"linphone","product":"belle-sip"}],"references":[{"url":"https://github.com/BelledonneCommunications/belle-sip/commit/d3f0651531e45e91c2e60f3a16a8b612802e5d2d","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/BelledonneCommunications/belle-sip/compare/5.0.18...5.0.20","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43610"},{"url":"https://github.com/advisories/GHSA-68x6-p7v3-xxqm"}],"sources":{"cve":[{"id":"CVE-2021-43610","description":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From header (request URI without a parameter) in an unauthenticated SIP message, a different issue than CVE-2021-33056.","status":"published","published":"2021-11-12T21:53:49Z","modified":"2024-08-04T04:03:08.616Z","updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30524","description":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From header (request URI without a parameter) in an unauthenticated SIP message, a different issue than CVE-2021-33056.","status":"published","published":"2021-11-12T21:53:49Z","modified":"2024-08-04T04:03:08Z","updated_at":"2026-11-03T03:24:13.772922Z"}],"ghsa":[{"id":"GHSA-68x6-p7v3-xxqm","title":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From...","description":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From header (request URI without a parameter) in an unauthenticated SIP message, a different issue than CVE-2021-33056.","status":"published","published":"2022-05-24T19:20:28Z","modified":"2023-01-30T05:03:34Z","cwes":["CWE-444"],"updated_at":"2026-11-02T14:46:51.868413Z"}],"nvd":[{"id":"CVE-2021-43610","description":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From header (request URI without a parameter) in an unauthenticated SIP message, a different issue than CVE-2021-33056.","status":"published","published":"2021-11-12T22:15:08.667Z","modified":"2026-06-17T04:11:11.473Z","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-444"],"updated_at":"2026-11-02T14:07:00.984108Z"}],"osv":[{"id":"CVE-2021-43610","description":"Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via an invalid From header (request URI without a parameter) in an unauthenticated SIP message, a different issue than CVE-2021-33056.","status":"published","published":"2021-11-12T22:15:08.667Z","modified":"2026-10-20T14:34:29.40072832Z","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":"2026-11-02T15:44:21.877444Z"}]}}