{"id":"CVE-2021-26407","aliases":["EUVD-2021-13213","GHSA-wvcg-5hx9-98xw"],"status":"published","title":"A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key...","description":"A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.0019,"percentile":0.08722,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-330"],"published":"2023-01-10T20:56:45Z","modified":"2026-06-17T03:43:20Z","products":[{"vendor":"amd","product":"2nd gen epyc"},{"vendor":"amd","product":"romepi_firmware"}],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26407"},{"url":"https://github.com/advisories/GHSA-wvcg-5hx9-98xw"}],"sources":{"cve":[{"id":"CVE-2021-26407","description":"A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.\n","status":"published","published":"2023-01-10T20:56:45.757Z","modified":"2025-04-08T20:19:44.675Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13213","description":"A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.\n","status":"published","published":"2023-01-10T20:56:45Z","modified":"2025-04-08T20:19:44Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:52:39.117101Z"}],"ghsa":[{"id":"GHSA-wvcg-5hx9-98xw","title":"A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key...","description":"A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.","status":"published","published":"2023-01-11T09:30:30Z","modified":"2025-04-08T21:32:33Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T15:00:52.300715Z"}],"nvd":[{"id":"CVE-2021-26407","description":"A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting in information disclosure.\n","status":"published","published":"2023-01-11T08:15:11.693Z","modified":"2026-06-17T03:43:20.813Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:07:07.323379Z"}]}}