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VULNERABILITIES

CVE-2025-4277 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:6.7 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA: InsydeCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.insyde.com/security-pledge/sa-2025005/ InsydeAdvisoryBundleRemedyVendor

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input ValidationInsyde

Affected Products

ProductVersions
InsydeH2O
05.2A.21
05.39.21 (semver)
05.47.21 (semver)
05.55.21 (semver)
05.62.21 (semver)

CPE

  • cpe:2.3:a:insyde:insydeh20:*:*:*:*:*:*:*:*

Remediation

  • Upgrade: 05.2A.21moderate effort
  • Upgrade: 05.39.21moderate effort
  • Upgrade: 05.47.21moderate effort
  • Upgrade: 05.55.21moderate effort
  • Upgrade: 05.62.21moderate effort
  • Upgrade: 05.71.21moderate effort

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-4277
NVD Published Date:
Aug 13, 2025
NVD Last Modified:
Jun 17, 2026
Source:
Insyde
CVE-2025-4277 Details - Not Deferred