CVSS 3.1
6.4 mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:HCVE-2023-20578
Medium (6.4) in amd. EPSS 0.1% chance of exploitation in the next 30 days.
A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow
an attacker with ring0 privileges and access to the
BIOS menu or UEFI shell to modify the communications buffer potentially
resulting in arbitrary code execution.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
- CWE
- CWE-367
- Published
- Modified
- Record from
- the NVD, synced
Affected
- amd:epyc_7001_firmware
- amd:epyc_7203_firmware
- amd:epyc_7203p_firmware
- amd:epyc_7232p_firmware
- amd:epyc_7251_firmware
- amd:epyc_7252_firmware
- amd:epyc_7261_firmware
- amd:epyc_7262_firmware
- amd:epyc_7272_firmware
- amd:epyc_7281_firmware
- amd:epyc_7282_firmware
- amd:epyc_72f3_firmware
- amd:epyc_7301_firmware
- amd:epyc_7302_firmware
- amd:epyc_7302p_firmware
- amd:epyc_7303_firmware
- amd:epyc_7303p_firmware
- amd:epyc_7313_firmware
- amd:epyc_7313p_firmware
- amd:epyc_7343_firmware
- amd:epyc_7351_firmware
- amd:epyc_7351p_firmware
- amd:epyc_7352_firmware
- amd:epyc_7371_firmware
- amd:epyc_7373x_firmware
- amd:epyc_73f3_firmware
- amd:epyc_7401_firmware
- amd:epyc_7401p_firmware
- amd:epyc_7402_firmware
- amd:epyc_7402p_firmware
- amd:epyc_7413_firmware
- amd:epyc_7443_firmware
- amd:epyc_7443p_firmware
- amd:epyc_7451_firmware
- amd:epyc_7452_firmware
- amd:epyc_7453_firmware
- amd:epyc_7473x_firmware
- amd:epyc_74f3_firmware
- amd:epyc_7501_firmware
- amd:epyc_7502_firmware
- amd:epyc_7502p_firmware
- amd:epyc_7513_firmware
- amd:epyc_7532_firmware
- amd:epyc_7542_firmware
- amd:epyc_7543_firmware
- amd:epyc_7543p_firmware
- amd:epyc_7551_firmware
- amd:epyc_7551p_firmware
- amd:epyc_7552_firmware
- amd:epyc_7573x_firmware