{"id":"CVE-2021-39296","aliases":["EUVD-2021-25657","GHSA-gg9x-v835-m48q"],"status":"published","description":"In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.","severity":{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03035,"percentile":0.87598,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2021-09-09T00:00:00Z","modified":"2026-10-20T10:55:05Z","products":[{"vendor":"openbmc-project","product":"openbmc"}],"references":[{"url":"https://github.com/openbmc/openbmc","tags":["x_transferred","Third Party Advisory","package","advisory"]},{"url":"https://github.com/google/security-research/security/advisories/GHSA-gg9x-v835-m48q","tags":["x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00737.html","tags":["x_transferred","advisory"]},{"url":"https://openbmc.org","tags":["web"]},{"url":"https://github.com/openbmc/docs/blob/master/release/release-notes.md","tags":["advisory"]},{"url":"https://github.com/openbmc/openbmc/issues/3811","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-39296","description":"In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.","status":"published","published":"2021-09-09T00:00:00Z","modified":"2024-08-04T02:06:41.542Z","updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-25657","description":"In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.","status":"published","published":"2021-09-09T00:00:00Z","modified":"2024-08-04T02:06:41Z","updated_at":"2026-11-03T03:24:23.719378Z"}],"nvd":[{"id":"CVE-2021-39296","description":"In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.","status":"published","published":"2021-09-09T18:15:09.097Z","modified":"2026-06-17T04:03:29.043Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:06:58.502206Z"}],"osv":[{"id":"CVE-2021-39295","description":"In OpenBMC 2.9, crafted IPMI messages allow an attacker to cause a denial of service to the BMC via the netipmid (IPMI lan+) interface.","status":"published","published":"2023-04-15T20:16:00.667Z","modified":"2026-10-20T10:55:05.459699133Z","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":"2026-11-02T15:44:20.843843Z"},{"id":"CVE-2021-39296","description":"In OpenBMC 2.9, crafted IPMI messages allow an attacker to bypass authentication and gain full control of the system.","status":"published","published":"2021-09-09T18:15:09.097Z","modified":"2026-10-20T10:55:05.457250419Z","cvss":[{"version":"3.1","score":10,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:20.843843Z"}]}}