Medium severity4.9NVD Advisory· Published Feb 13, 2024· Updated Jun 17, 2026

CVE-2023-31347

Description

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.

Affected products

AMD/Epyc 7203 Firmware
cpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7203p Firmware
cpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 72f3 Firmware
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7303 Firmware
cpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7303p Firmware
cpe:2.3:o:amd:epyc_7303p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7313 Firmware
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7313p Firmware
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7343 Firmware
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7373x Firmware
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 73f3 Firmware
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7413 Firmware
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7443 Firmware
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7443p Firmware
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7453 Firmware
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7473x Firmware
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 74f3 Firmware
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7513 Firmware
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7543 Firmware
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7543p Firmware
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7573x Firmware
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 75f3 Firmware
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7643 Firmware
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7643p Firmware
cpe:2.3:o:amd:epyc_7643p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7663 Firmware
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7663p Firmware
cpe:2.3:o:amd:epyc_7663p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7713 Firmware
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7713p Firmware
cpe:2.3:o:amd:epyc_7713p_firmware:-:*:*:*:*:*:*:*
AMD/Epyc 7763 Firmware
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 7773x Firmware
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.c
AMD/Epyc 8024p Firmware
cpe:2.3:o:amd:epyc_8024p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8024pn Firmware
cpe:2.3:o:amd:epyc_8024pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8124p Firmware
cpe:2.3:o:amd:epyc_8124p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8124pn Firmware
cpe:2.3:o:amd:epyc_8124pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8224p Firmware
cpe:2.3:o:amd:epyc_8224p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8224pn Firmware
cpe:2.3:o:amd:epyc_8224pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8324p Firmware
cpe:2.3:o:amd:epyc_8324p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8324pn Firmware
cpe:2.3:o:amd:epyc_8324pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8434p Firmware
cpe:2.3:o:amd:epyc_8434p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8434pn Firmware
cpe:2.3:o:amd:epyc_8434pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8534p Firmware
cpe:2.3:o:amd:epyc_8534p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 8534pn Firmware
cpe:2.3:o:amd:epyc_8534pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9124 Firmware
cpe:2.3:o:amd:epyc_9124_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9174f Firmware
cpe:2.3:o:amd:epyc_9174f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9184x Firmware
cpe:2.3:o:amd:epyc_9184x_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9224 Firmware
cpe:2.3:o:amd:epyc_9224_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9254 Firmware
cpe:2.3:o:amd:epyc_9254_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9274f Firmware
cpe:2.3:o:amd:epyc_9274f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9334 Firmware
cpe:2.3:o:amd:epyc_9334_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9354 Firmware
cpe:2.3:o:amd:epyc_9354_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9354p Firmware
cpe:2.3:o:amd:epyc_9354p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9374f Firmware
cpe:2.3:o:amd:epyc_9374f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9384x Firmware
cpe:2.3:o:amd:epyc_9384x_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9454 Firmware
cpe:2.3:o:amd:epyc_9454_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9454p Firmware
cpe:2.3:o:amd:epyc_9454p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9474f Firmware
cpe:2.3:o:amd:epyc_9474f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9534 Firmware
cpe:2.3:o:amd:epyc_9534_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9554 Firmware
cpe:2.3:o:amd:epyc_9554_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9554p Firmware
cpe:2.3:o:amd:epyc_9554p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9634 Firmware
cpe:2.3:o:amd:epyc_9634_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9654 Firmware
cpe:2.3:o:amd:epyc_9654_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9654p Firmware
cpe:2.3:o:amd:epyc_9654p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/Epyc 9684x Firmware
cpe:2.3:o:amd:epyc_9684x_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.b
AMD/SEV firmwarellm-fuzzy
AMD/EPYC Processorscpe-rescue2 versions
various + 1 more
- (no CPE)range: various
- (no CPE)range: various

cvss	0.319
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

CVE-2023-31347

Description

Affected products

Patches

Vulnerability mechanics

References

News mentions