{"id":"CVE-2021-26339","details":"A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.","modified":"2026-03-15T22:39:37.803797Z","published":"2022-05-11T17:15:08.253Z","related":["SUSE-SU-2022:1751-1","SUSE-SU-2022:1840-1","SUSE-SU-2022:1846-1","SUSE-SU-2022:1847-1","SUSE-SU-2022:1923-1","openSUSE-SU-2024:12088-1","openSUSE-SU-2025:14769-1","openSUSE-SU-2025:14770-1","openSUSE-SU-2025:14771-1","openSUSE-SU-2025:14772-1","openSUSE-SU-2025:14773-1","openSUSE-SU-2025:14774-1","openSUSE-SU-2025:14775-1","openSUSE-SU-2025:14776-1","openSUSE-SU-2025:14777-1","openSUSE-SU-2025:14778-1","openSUSE-SU-2025:14779-1","openSUSE-SU-2025:14780-1","openSUSE-SU-2025:14781-1","openSUSE-SU-2025:14782-1","openSUSE-SU-2025:14783-1","openSUSE-SU-2025:14784-1","openSUSE-SU-2025:14785-1","openSUSE-SU-2025:14786-1","openSUSE-SU-2025:14787-1","openSUSE-SU-2025:14788-1","openSUSE-SU-2025:14789-1","openSUSE-SU-2025:14790-1","openSUSE-SU-2025:14791-1","openSUSE-SU-2025:14792-1","openSUSE-SU-2025:14793-1","openSUSE-SU-2025:14794-1","openSUSE-SU-2025:14795-1","openSUSE-SU-2025:14796-1","openSUSE-SU-2025:14797-1","openSUSE-SU-2025:14798-1","openSUSE-SU-2025:14799-1","openSUSE-SU-2025:14800-1","openSUSE-SU-2025:14801-1","openSUSE-SU-2025:14804-1"],"references":[{"type":"ADVISORY","url":"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027"},{"type":"ADVISORY","url":"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26339.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"milanpi-sp3_1.0.0.7"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"comboam4_v2_pi_1.2.0.6c"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]},{"events":[{"introduced":"0"},{"fixed":"cezannepi-fp6_1.0.0.9a"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}