CVSS 3.1
6.0 mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:NCVE-2023-31355
Medium (6.0) in amd. EPSS 0.4% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-787, CWE-119
- Published
- Modified
- Record from
- the NVD, synced
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