CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-26406
High (7.5) in amd. EPSS 0.4% chance of exploitation in the next 30 days.
Insufficient validation in parsing Owner's
Certificate Authority (OCA) certificates in SEV (AMD Secure Encrypted Virtualization)
and SEV-ES user application can lead to a host crash potentially resulting in
denial of service.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- 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_7301_firmware
- amd:epyc_7302_firmware
- amd:epyc_7302p_firmware
- amd:epyc_7351_firmware
- amd:epyc_7351p_firmware
- amd:epyc_7352_firmware
- amd:epyc_7371_firmware
- amd:epyc_7401_firmware
- amd:epyc_7401p_firmware
- amd:epyc_7402_firmware
- amd:epyc_7402p_firmware
- amd:epyc_7451_firmware
- amd:epyc_7452_firmware
- amd:epyc_7501_firmware
- amd:epyc_7502_firmware
- amd:epyc_7502p_firmware
- amd:epyc_7532_firmware
- amd:epyc_7542_firmware
- amd:epyc_7551_firmware
- amd:epyc_7551p_firmware
- amd:epyc_7552_firmware
- amd:epyc_7571_firmware
- amd:epyc_7601_firmware
- amd:epyc_7642_firmware
- amd:epyc_7662_firmware
- amd:epyc_7702_firmware
- amd:epyc_7702p_firmware
- amd:epyc_7742_firmware
- amd:epyc_7f32_firmware
- amd:epyc_7f52_firmware
- amd:epyc_7f72_firmware
- amd:epyc_7h12_firmware