CVE-2025-4276

UsbCoreDxe has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
LOCAL
HIGH
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
InsydeCNA
7.5 HIGH
LOCAL
HIGH
HIGH
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://www.insyde.com/security-pledge/sa-2025005/