Medium severity6.0NVD Advisory· Published Aug 5, 2024· Updated Jun 17, 2026

CVE-2023-31355

Description

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.

Affected products

AMD/AMD EPYC™ Embedded 7003v5
Range: various
AMD/AMD EPYC™ Embedded 9003v5
Range: various
AMD/Epyc 7203 Firmware
cpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7203p Firmware
cpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 72f3 Firmware
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7303 Firmware
cpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7303p Firmware
cpe:2.3:o:amd:epyc_7303p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7313 Firmware
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7313p Firmware
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7343 Firmware
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 73f3 Firmware
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7373x Firmware
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7413 Firmware
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7443 Firmware
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7443p Firmware
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 74f3 Firmware
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7453 Firmware
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7473x Firmware
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7513 Firmware
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7543 Firmware
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7543p Firmware
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 75f3 Firmware
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7573x Firmware
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7643 Firmware
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7773x Firmware
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7643p Firmware
cpe:2.3:o:amd:epyc_7643p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7663 Firmware
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7663p Firmware
cpe:2.3:o:amd:epyc_7663p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7713 Firmware
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7713p Firmware
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 7763 Firmware
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
Range: <milanpi_1.0.0.d
AMD/Epyc 8024pn Firmware
cpe:2.3:o:amd:epyc_8024pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8024p Firmware
cpe:2.3:o:amd:epyc_8024p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8124pn Firmware
cpe:2.3:o:amd:epyc_8124pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8124p Firmware
cpe:2.3:o:amd:epyc_8124p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8224pn Firmware
cpe:2.3:o:amd:epyc_8224pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8224p Firmware
cpe:2.3:o:amd:epyc_8224p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8324pn Firmware
cpe:2.3:o:amd:epyc_8324pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8324p Firmware
cpe:2.3:o:amd:epyc_8324p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8434pn Firmware
cpe:2.3:o:amd:epyc_8434pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8434p Firmware
cpe:2.3:o:amd:epyc_8434p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8534pn Firmware
cpe:2.3:o:amd:epyc_8534pn_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 8534p Firmware
cpe:2.3:o:amd:epyc_8534p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9734 Firmware
cpe:2.3:o:amd:epyc_9734_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9754s Firmware
cpe:2.3:o:amd:epyc_9754s_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9754 Firmware
cpe:2.3:o:amd:epyc_9754_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9184x Firmware
cpe:2.3:o:amd:epyc_9184x_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9384x Firmware
cpe:2.3:o:amd:epyc_9384x_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9684x Firmware
cpe:2.3:o:amd:epyc_9684x_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9124 Firmware
cpe:2.3:o:amd:epyc_9124_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9174f Firmware
cpe:2.3:o:amd:epyc_9174f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9224 Firmware
cpe:2.3:o:amd:epyc_9224_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9254 Firmware
cpe:2.3:o:amd:epyc_9254_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9274f Firmware
cpe:2.3:o:amd:epyc_9274f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9334 Firmware
cpe:2.3:o:amd:epyc_9334_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9354 Firmware
cpe:2.3:o:amd:epyc_9354_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9354p Firmware
cpe:2.3:o:amd:epyc_9354p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9374f Firmware
cpe:2.3:o:amd:epyc_9374f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9454 Firmware
cpe:2.3:o:amd:epyc_9454_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9454p Firmware
cpe:2.3:o:amd:epyc_9454p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9474f Firmware
cpe:2.3:o:amd:epyc_9474f_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9534 Firmware
cpe:2.3:o:amd:epyc_9534_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9554 Firmware
cpe:2.3:o:amd:epyc_9554_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9554p Firmware
cpe:2.3:o:amd:epyc_9554p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9634 Firmware
cpe:2.3:o:amd:epyc_9634_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9654 Firmware
cpe:2.3:o:amd:epyc_9654_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc 9654p Firmware
cpe:2.3:o:amd:epyc_9654p_firmware:*:*:*:*:*:*:*:*
Range: <genoapi_1.0.0.c
AMD/Epyc Embedded 7313 Firmware
cpe:2.3:o:amd:epyc_embedded_7313_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7313p Firmware
cpe:2.3:o:amd:epyc_embedded_7313p_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7413 Firmware
cpe:2.3:o:amd:epyc_embedded_7413_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7443 Firmware
cpe:2.3:o:amd:epyc_embedded_7443_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7443p Firmware
cpe:2.3:o:amd:epyc_embedded_7443p_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7543 Firmware
cpe:2.3:o:amd:epyc_embedded_7543_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7543p Firmware
cpe:2.3:o:amd:epyc_embedded_7543p_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7643 Firmware
cpe:2.3:o:amd:epyc_embedded_7643_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7713 Firmware
cpe:2.3:o:amd:epyc_embedded_7713_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 7713p Firmware
cpe:2.3:o:amd:epyc_embedded_7713p_firmware:*:*:*:*:*:*:*:*
Range: <embmilanpi-sp3_1.0.0.9
AMD/Epyc Embedded 9124 Firmware
cpe:2.3:o:amd:epyc_embedded_9124_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9254 Firmware
cpe:2.3:o:amd:epyc_embedded_9254_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9354 Firmware
cpe:2.3:o:amd:epyc_embedded_9354_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9354p Firmware
cpe:2.3:o:amd:epyc_embedded_9354p_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9454 Firmware
cpe:2.3:o:amd:epyc_embedded_9454_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9454p Firmware
cpe:2.3:o:amd:epyc_embedded_9454p_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9534 Firmware
cpe:2.3:o:amd:epyc_embedded_9534_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9554 Firmware
cpe:2.3:o:amd:epyc_embedded_9554_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9554p Firmware
cpe:2.3:o:amd:epyc_embedded_9554p_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9654 Firmware
cpe:2.3:o:amd:epyc_embedded_9654_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/Epyc Embedded 9654p Firmware
cpe:2.3:o:amd:epyc_embedded_9654p_firmware:*:*:*:*:*:*:*:*
Range: <embgenoapi-sp5_1.0.0.7
AMD/SNP Firmwarellm-fuzzy
AMD/EPYC Processorscpe-rescue2 versions
various+ 1 more
- (no CPE)range: various
- (no CPE)range: various

Patches

Vulnerability mechanics

References

https//www.amd.com/en/resources/product-security/bulletin/amd-sb-3011.htmlnvdBroken Link

News mentions

No linked articles in our index yet.

cvss	0.390
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000