CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2021-26355
Medium (5.5) in amd. EPSS 0.2% chance of exploitation in the next 30 days.
Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in a potential denial-of-service.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-31)
- CWE
- CWE-693
- Published
- Modified
- Record from
- the NVD, synced
Affected
- amd:epyc_7003_firmware
- amd:epyc_72f3_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_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_7663_firmware
- amd:epyc_7713_firmware
- amd:epyc_7713p_firmware
- amd:epyc_7743_firmware
- amd:epyc_7763_firmware
- amd:epyc_7773x_firmware