{"id":"CVE-2021-26400","aliases":["EUVD-2021-13206","GHSA-p6cf-jjrc-ff28"],"status":"published","title":"AMD processors may speculatively re-order load instructions which can result in stale data being...","description":"AMD processors may speculatively re-order load instructions which can result in stale data being observed when multiple processors are operating on shared memory, resulting in potential data leakage.","severity":{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00237,"percentile":0.14842,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-05-11T16:36:21Z","modified":"2026-06-17T03:43:19Z","products":[{"vendor":"amd","product":"amd processors"},{"vendor":"amd","product":"cpu"}],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1035","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26400"},{"url":"https://github.com/advisories/GHSA-p6cf-jjrc-ff28"}],"sources":{"cve":[{"id":"CVE-2021-26400","description":"AMD processors may speculatively re-order load instructions which can result in stale data being observed when multiple processors are operating on shared memory, resulting in potential data leakage.","status":"published","published":"2022-05-11T16:36:21.153Z","modified":"2024-09-17T04:05:04.063Z","updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13206","description":"AMD processors may speculatively re-order load instructions which can result in stale data being observed when multiple processors are operating on shared memory, resulting in potential data leakage.","status":"published","published":"2022-05-11T16:36:21Z","modified":"2024-09-17T04:05:04Z","updated_at":"2026-11-03T00:28:25.709658Z"}],"ghsa":[{"id":"GHSA-p6cf-jjrc-ff28","title":"AMD processors may speculatively re-order load instructions which can result in stale data being...","description":"AMD processors may speculatively re-order load instructions which can result in stale data being observed when multiple processors are operating on shared memory, resulting in potential data leakage.","status":"published","published":"2022-05-12T00:01:41Z","modified":"2023-02-01T05:02:12Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T14:49:52.298896Z"}],"nvd":[{"id":"CVE-2021-26400","description":"AMD processors may speculatively re-order load instructions which can result in stale data being observed when multiple processors are operating on shared memory, resulting in potential data leakage.","status":"published","published":"2022-05-11T17:15:08.787Z","modified":"2026-06-17T03:43:19.607Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}