CVE-2025-21370

Name: CVE-2025-21370
Creator: NVD / NIST
Published: 2025-01-14T18:16:02.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2025-21370 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.46%

36.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Microsoft	Windows 11 22h2	< 10.0.22621.4751
Microsoft	Windows 11 23h2	< 10.0.22631.4751
Microsoft	Windows 11 24h2	< 10.0.26100.2894

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21370Patch, Vendor Advisory

Timeline

Published: Jan 14, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-21370?

Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

How severe is CVE-2025-21370?

CVE-2025-21370 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2025-21370?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-21370?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST