QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2025-4277

Back to search

CVE-2025-4277

Published: Aug 13, 2025

Modified: Aug 14, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

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

VendorProductVersions

Insyde Software

InsydeH2O

affected
Kernel 5.2 - < 05.2A.21
affected
Kernel 5.3 - < 05.39.21
affected
Kernel 5.4 - < 05.47.21
affected
Kernel 5.5 - < 05.55.21
affected
Kernel 5.6 - < 05.62.21

+1 more versions

Weaknesses (CWE)

CWE-20

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now