PT-2025-4220 · Microsoft · Windows Virtualization-Based Security+1

Published 2025-01-14 · Updated 2025-01-21 · CVE-2025-21340

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Windows Virtualization-Based Security (VBS) (affected versions not specified)

Description A security-feature bypass issue allows attackers to affect the system. This issue is related to the Windows Virtualization-Based Security (VBS) and enables attackers to bypass security features.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2025-21340

Affected Products

Windows

Windows Virtualization-Based Security

References · 7

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-21340 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-21340 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21340 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21340 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21340 · Security Note
• https://t.me/cvenotify/108124 · Telegram Post
• https://twitter.com/CVEnew/status/1879290758001197316 · Twitter Post