CVE-2025-4277 — HIGH (7.5) — White Hats Nepal

Vulnerability Description

Tcg2Smm has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-20

References

https://www.insyde.com/security-pledge/sa-2025005/

FAQ

What is CVE-2025-4277?

CVE-2025-4277 is a vulnerability with a CVSS score of 7.5 (HIGH). Tcg2Smm has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

How severe is CVE-2025-4277?

CVE-2025-4277 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-4277?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.