CVE-2025-21367: microsoft windows_10_1809 Use After Free
CVSS: 7.8v3.1HighAnalyzed
Published 11-02-2025Last modified 26-02-2026
Vulnerability summary
CVE-2025-21367 is a high (CVSS 7.8) Use After Free vulnerability in microsoft windows_10_1809. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.1% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.65%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-02-2025PublishedVulnerability first disclosed.
- 26-02-2026Last modifiedVulnerability information updated.
Description
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.65%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
0.00 pp
From 0.65% on 19-09-2026
19-09-202619-10-2026
EPSS score0.65%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft20 products
- windows_10_1809< 10.0.17763.6893
- windows_10_21h2< 10.0.19044.5487
- windows_10_22h2< 10.0.19045.5487
- windows 10 version 1809≥ 10.0.17763.0, < 10.0.17763.6893
- windows 10 version 21h2≥ 10.0.19044.0, < 10.0.19044.5487
1 vendor · 20 products
