CVE-2025-21315: microsoft windows_11_24h2 Use After Free
CVSS: 7.8v3.1HighAnalyzed
Published 14-01-2025Last modified 09-06-2026
Vulnerability summary
CVE-2025-21315 is a high (CVSS 7.8) Use After Free vulnerability in microsoft windows_11_24h2. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.5% 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
- 14-01-2025PublishedVulnerability first disclosed.
- 09-06-2026Last modifiedVulnerability information updated.
Description
Microsoft Brokering File System Elevation of Privilege Vulnerability
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.65%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
0.00 pp
From 0.65% on 21-09-2026
21-09-202621-10-2026
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
Microsoft6 products
- windows_11_24h2< 10.0.26100.2894
- windows 11 version 24h2≥ 10.0.26100.0, < 10.0.26100.2894
- windows_server_2022_23h2< 10.0.25398.1369
- windows server 2022, 23h2 edition (server core installation)≥ 10.0.25398.0, < 10.0.25398.1369
- windows_server_2025≥ 10.0.26100.0, < 10.0.26100.2894 | < 10.0.26100.2894
1 vendor · 6 products
