{"id":"CVE-2020-11877","aliases":["EUVD-2020-4217","GHSA-23m4-p6hq-h69h"],"status":"disputed","title":"airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector...","description":"airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption. NOTE: the vendor states that this IV is used only within unreachable code","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01563,"percentile":0.75446,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326","CWE-330"],"published":"2020-04-17T15:45:43Z","modified":"2026-06-17T02:50:57Z","products":[{"vendor":"zoom","product":"meetings"}],"references":[{"url":"https://dev.io/posts/zoomzoo/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11877"},{"url":"https://dev.io/posts/zoomzoo"},{"url":"https://github.com/advisories/GHSA-23m4-p6hq-h69h"}],"sources":{"cve":[{"id":"CVE-2020-11877","description":"airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption. NOTE: the vendor states that this IV is used only within unreachable code","status":"disputed","published":"2020-04-17T15:45:43Z","modified":"2024-08-04T11:42:00.295Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:35:57.67317Z"}],"euvd":[{"id":"EUVD-2020-4217","description":"airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption. NOTE: the vendor states that this IV is used only within unreachable code","status":"published","published":"2020-04-17T15:45:43Z","modified":"2024-08-04T11:42:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-03T03:07:41.956166Z"}],"ghsa":[{"id":"GHSA-23m4-p6hq-h69h","title":"airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector...","description":"airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption.","status":"published","published":"2022-05-24T17:15:43Z","modified":"2024-03-30T05:01:48Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-326","CWE-330"],"updated_at":"2026-11-02T14:55:45.190481Z"}],"nvd":[{"id":"CVE-2020-11877","description":"airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption. NOTE: the vendor states that this IV is used only within unreachable code","status":"disputed","published":"2020-04-17T16:15:14.023Z","modified":"2026-06-17T02:50:57.88Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:05:59.125695Z"}]}}