Vulnerability in Microsoft Windows_10_1809
CVE-2025-21340
Windows Virtualization-Based Security (VBS) Security Feature Bypass Vulnerability
EPSS: 0.004 (35.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Microsoft Windows_10_1809
- Microsoft Windows_10_21h2
- Microsoft Windows_10_22h2
- Microsoft Windows 10 Version 1809 — versions 10.0.17763.0
- Microsoft Windows 10 Version 21h2 — versions 10.0.19044.0
- Microsoft Windows 10 Version 22h2 — versions 10.0.19045.0
- Microsoft Windows_11_22h2
- Microsoft Windows_11_23h2
- Microsoft Windows_11_24h2
- Microsoft Windows 11 Version 22h2 — versions 10.0.22621.0
Weakness classification (CWE)
References
- secure@microsoft.com (vendor-advisory, Patch, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-21340?
- CVE-2025-21340 is a medium-severity vulnerability in Microsoft Windows_10_1809, classified under Improper Access Control. CVSS score: 5.5/10. Published 2025-01-14.
- How severe is CVE-2025-21340?
- Medium severity. CVSS v3 base score is 5.5 out of 10.