8.8

CVE-2025-21370: microsoft windows_11_22h2 Improper Input Validation

CVSS: 8.8v3.1HighAnalyzed
Published 14-01-2025Last modified 09-06-2026
Open JSON

Vulnerability summary

CVE-2025-21370 is a high (CVSS 8.8) Improper Input Validation vulnerability in microsoft windows_11_22h2. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.9% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.47%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-01-2025
    PublishedVulnerability first disclosed.
  2. 09-06-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

0.00 pp

From 0.47% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft7 products

1 vendor · 7 products

References

1 links