CVE-2025-29824
Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability
Microsoft WindowsOperating systems
CVSS
7.8HighExploit odds (EPSS)13.9%Chance of exploitation activity in the next 30 days, higher than 96% of CVEs. Scored 23 Oct 2026FIRST EPSS
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
- 10.0.10240.20978Windows 10 Version 1507CVE List
- 10.0.14393.7969Windows 10 Version 1607CVE List
- 10.0.17763.7136Windows 10 Version 1809CVE List
- 10.0.19044.5737Windows 10 Version 21H2CVE List
- 10.0.19045.5737Windows 10 Version 22H2CVE List
- 10.0.22621.5189Windows 11 version 22H2CVE List
Show all 25 fixed versions
- 10.0.22631.5189Windows 11 version 22H3CVE List
- 10.0.22631.5189Windows 11 Version 23H2CVE List
- 10.0.26100.3775Windows 11 Version 24H2CVE List
- 6.1.7601.27670Windows Server 2008 R2 Service Pack 1CVE List
- 6.1.7601.27670Windows Server 2008 R2 Service Pack 1 (Server Core installation)CVE List
- 6.0.6003.23220Windows Server 2008 Service Pack 2CVE List
- 6.0.6003.23220Windows Server 2008 Service Pack 2 (Server Core installation)CVE List
- 6.2.9200.25423Windows Server 2012CVE List
- 6.2.9200.25423Windows Server 2012 (Server Core installation)CVE List
- 6.3.9600.22523Windows Server 2012 R2CVE List
- 6.3.9600.22523Windows Server 2012 R2 (Server Core installation)CVE List
- 10.0.14393.7969Windows Server 2016CVE List
- 10.0.14393.7969Windows Server 2016 (Server Core installation)CVE List
- 10.0.17763.7136Windows Server 2019CVE List
- 10.0.17763.7136Windows Server 2019 (Server Core installation)CVE List
- 10.0.20348.3453Windows Server 2022CVE List
- 10.0.25398.1551Windows Server 2022, 23H2 Edition (Server Core installation)CVE List
- 10.0.26100.3775Windows Server 2025CVE List
- 10.0.26100.3775Windows Server 2025 (Server Core installation)CVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Timeline
Description
Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.
Text from CVE List
Affected versions 25
- Windows 10 Version 1507affected: 10.0.10240.0 before 10.0.10240.20978CVE List
- Windows 10 Version 1607affected: 10.0.14393.0 before 10.0.14393.7969CVE List
- Windows 10 Version 1809affected: 10.0.17763.0 before 10.0.17763.7136CVE List
- Windows 10 Version 21H2affected: 10.0.19044.0 before 10.0.19044.5737CVE List
- Windows 10 Version 22H2affected: 10.0.19045.0 before 10.0.19045.5737CVE List
- Windows 11 version 22H2affected: 10.0.22621.0 before 10.0.22621.5189CVE List
- Windows 11 version 22H3affected: 10.0.22631.0 before 10.0.22631.5189CVE List
- Windows 11 Version 23H2affected: 10.0.22631.0 before 10.0.22631.5189CVE List
- Windows 11 Version 24H2affected: 10.0.26100.0 before 10.0.26100.3775CVE List
- Windows Server 2008 R2 Service Pack 1affected: 6.1.7601.0 before 6.1.7601.27670CVE List
- Windows Server 2008 R2 Service Pack 1 (Server Core installation)affected: 6.1.7601.0 before 6.1.7601.27670CVE List
- Windows Server 2008 Service Pack 2affected: 6.0.6003.0 before 6.0.6003.23220CVE List
- Windows Server 2008 Service Pack 2 (Server Core installation)affected: 6.0.6003.0 before 6.0.6003.23220CVE List
- Windows Server 2012affected: 6.2.9200.0 before 6.2.9200.25423CVE List
- Windows Server 2012 (Server Core installation)affected: 6.2.9200.0 before 6.2.9200.25423CVE List
- Windows Server 2012 R2affected: 6.3.9600.0 before 6.3.9600.22523CVE List
- Windows Server 2012 R2 (Server Core installation)affected: 6.3.9600.0 before 6.3.9600.22523CVE List
- Windows Server 2016affected: 10.0.14393.0 before 10.0.14393.7969CVE List
- Windows Server 2016 (Server Core installation)affected: 10.0.14393.0 before 10.0.14393.7969CVE List
- Windows Server 2019affected: 10.0.17763.0 before 10.0.17763.7136CVE List
- Windows Server 2019 (Server Core installation)affected: 10.0.17763.0 before 10.0.17763.7136CVE List
- Windows Server 2022affected: 10.0.20348.0 before 10.0.20348.3453CVE List
- Windows Server 2022, 23H2 Edition (Server Core installation)affected: 10.0.25398.0 before 10.0.25398.1551CVE List
- Windows Server 2025affected: 10.0.26100.0 before 10.0.26100.3775CVE List
- Windows Server 2025 (Server Core installation)affected: 10.0.26100.0 before 10.0.26100.3775CVE List
References 6
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29824Fixvia CVE List
- msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-29824Referencevia CISA KEV
- nvd.nist.gov/vuln/detail/CVE-2025-29824Referencevia CISA KEV
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-29824Referencevia CVE List
- vicarius.io/vsociety/posts/cve-2025-29824-windows-common-log-file-system-driver-elevation-of-privilege-vulnerability-mitigation-scriptReferencevia CVE List
- vicarius.io/vsociety/posts/cve-2025-29824-windows-common-log-file-system-driver-elevation-of-privilege-vulnerability-detection-scriptReferencevia CVE List