{"id":"CVE-2021-42126","aliases":["EUVD-2021-29111","GHSA-mgfp-f8w4-cfpf"],"status":"published","title":"An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an...","description":"An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform privilege escalation.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.03999,"percentile":0.90673,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-285","CWE-863"],"published":"2021-12-07T13:12:56Z","modified":"2026-06-17T04:09:23Z","products":[{"vendor":"ivanti","product":"avalanche"}],"references":[{"url":"https://forums.ivanti.com/s/article/Security-Alert-CVE-s-Addressed-in-Avalanche-6-3-3","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42126"},{"url":"https://github.com/advisories/GHSA-mgfp-f8w4-cfpf"}],"sources":{"cve":[{"id":"CVE-2021-42126","description":"An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform privilege escalation.","status":"published","published":"2021-12-07T13:12:56Z","modified":"2024-08-04T03:30:37.432Z","cwes":["CWE-285"],"updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29111","description":"An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform privilege escalation.","status":"published","published":"2021-12-07T13:12:56Z","modified":"2024-08-04T03:30:37Z","updated_at":"2026-11-03T03:24:16.217613Z"}],"ghsa":[{"id":"GHSA-mgfp-f8w4-cfpf","title":"An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an...","description":"An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform privilege escalation.","status":"published","published":"2021-12-08T00:01:33Z","modified":"2023-01-28T05:02:45Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:43:50.187003Z"}],"nvd":[{"id":"CVE-2021-42126","description":"An improper authorization control vulnerability exists in Ivanti Avalanche before 6.3.3 allows an attacker with access to the Inforail Service to perform privilege escalation.","status":"published","published":"2021-12-07T14:15:09.197Z","modified":"2026-06-17T04:09:23.483Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-285"],"updated_at":"2026-11-02T14:07:01.811115Z"}]}}