CVE-2023-31347 4.9 medium EPSS 0.5%
Due to a code bug in
Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a
guest to observe an incorrect TSC when Secure TSC is enabled potentially
resulting in a loss of guest integrity.
Severity
CVSS 3.1 4.9 medium CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:NEnable JavaScript to see the metric table and diagram.
EPSS 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE CWE-682
Published 2024-02-13
Modified 2026-06-17
Record from the NVD, synced 2026-10-19 Affected amd:epyc_7203_firmware amd:epyc_7203p_firmware amd:epyc_72f3_firmware amd:epyc_7303_firmware amd:epyc_7303p_firmware amd:epyc_7313_firmware amd:epyc_7313p_firmware amd:epyc_7343_firmware amd:epyc_7373x_firmware amd:epyc_73f3_firmware amd:epyc_7413_firmware amd:epyc_7443_firmware amd:epyc_7443p_firmware amd:epyc_7453_firmware amd:epyc_7473x_firmware amd:epyc_74f3_firmware amd:epyc_7513_firmware amd:epyc_7543_firmware amd:epyc_7543p_firmware amd:epyc_7573x_firmware amd:epyc_75f3_firmware amd:epyc_7643_firmware amd:epyc_7643p_firmware amd:epyc_7663_firmware amd:epyc_7663p_firmware amd:epyc_7713_firmware amd:epyc_7713p_firmware amd:epyc_7763_firmware amd:epyc_7773x_firmware amd:epyc_8024p_firmware amd:epyc_8024pn_firmware amd:epyc_8124p_firmware amd:epyc_8124pn_firmware amd:epyc_8224p_firmware amd:epyc_8224pn_firmware amd:epyc_8324p_firmware amd:epyc_8324pn_firmware amd:epyc_8434p_firmware amd:epyc_8434pn_firmware amd:epyc_8534p_firmware amd:epyc_8534pn_firmware amd:epyc_9124_firmware amd:epyc_9174f_firmware amd:epyc_9184x_firmware amd:epyc_9224_firmware amd:epyc_9254_firmware amd:epyc_9274f_firmware amd:epyc_9334_firmware amd:epyc_9354_firmware amd:epyc_9354p_firmware References Check your stack JSON