CVE-2021-26402
moderate-risk
Published 2023-01-11
Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.
Do I need to act?
-
0.05% 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 7.1/10
High
LOCAL
/ LOW complexity
Affected Products (20)
Affected Vendors
References (2)
48
/ 100
moderate-risk
Severity
22/34 · High
Exploitability
0/34 · Minimal
Exposure
26/34 · High