SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-26321

Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP.

MEDIUM 5.5EPSS 0.25%

Does this matter?

Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own.

Description

Insufficient ID command validation in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP.

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
0.25% probability · 17th percentile
CISA KEV
Not listed
Weakness
CWE-20, CWE-77
Affected
amd/epyc 7601 firmware · amd/epyc 7551p firmware · amd/epyc 7551 firmware · amd/epyc 7501 firmware · amd/epyc 7451 firmware · amd/epyc 7401 firmware · amd/epyc 7371 firmware · amd/epyc 7351p firmware · amd/epyc 7351 firmware · amd/epyc 7301 firmware · amd/epyc 7281 firmware · amd/epyc 7261 firmware · amd/epyc 7251 firmware · amd/epyc 7f72 firmware · amd/epyc 7f52 firmware · amd/epyc 7f32 firmware · amd/epyc 7h12 firmware · amd/epyc 7742 firmware · amd/epyc 7702 firmware · amd/epyc 7702p firmware · +37 more
Source
psirt@amd.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.