{"id":"CVE-2021-45490","aliases":["EUVD-2021-32256","GHSA-5vvh-22mv-pf93"],"status":"published","title":"The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for...","description":"The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for Android through 2022-03-17 lack SSL certificate validation.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01087,"percentile":0.65545,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-295"],"published":"2022-03-28T01:10:43Z","modified":"2026-06-17T04:13:29Z","products":[{"vendor":"3cx","product":"3cx"}],"references":[{"url":"https://www.3cx.com/community/forums/posts-articles-news/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://packetstormsecurity.com/files/166376/3CX-Client-Missing-TLS-Validation.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-45490"},{"url":"https://github.com/advisories/GHSA-5vvh-22mv-pf93"}],"sources":{"cve":[{"id":"CVE-2021-45490","description":"The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for Android through 2022-03-17 lack SSL certificate validation.","status":"published","published":"2022-03-28T01:10:43Z","modified":"2024-08-04T04:39:21.139Z","updated_at":"2026-11-02T14:33:02.580561Z"}],"euvd":[{"id":"EUVD-2021-32256","description":"The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for Android through 2022-03-17 lack SSL certificate validation.","status":"published","published":"2022-03-28T01:10:43Z","modified":"2024-08-04T04:39:21Z","updated_at":"2026-11-03T03:08:27.448176Z"}],"ghsa":[{"id":"GHSA-5vvh-22mv-pf93","title":"The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for...","description":"The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for Android through 2022-03-17 lack SSL certificate validation.","status":"published","published":"2022-03-29T00:01:14Z","modified":"2023-01-27T05:01:04Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:41:48.523978Z"}],"nvd":[{"id":"CVE-2021-45490","description":"The client applications in 3CX on Windows, the 3CX app for iOS, and the 3CX application for Android through 2022-03-17 lack SSL certificate validation.","status":"published","published":"2022-03-28T02:15:06.95Z","modified":"2026-06-17T04:13:29.827Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:07:05.581807Z"}]}}