CVE-2021-26344
moderate-risk
Published 2024-08-13
An out of bounds memory write when processing the AMD PSP1 Configuration Block (APCB) could allow an attacker with access the ability to modify the BIOS image, and the ability to sign the resulting image, to potentially modify the APCB block resulting in arbitrary code execution.
Do I need to act?
-
0.08% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.2/10
High
LOCAL
/ HIGH complexity
Affected Products (20)
Epyc 7203 Firmware
Epyc 7203P Firmware
Epyc 7303 Firmware
Epyc 7303P Firmware
Affected Vendors
References (1)
47
/ 100
moderate-risk
Severity
19/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
28/34 · Critical