Home/CVE/Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability
CVE

CVE-2025-29824

Microsoft Windows Common Log File System (CLFS) Driver Use-After-Free Vulnerability

Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.

HIGH · CVSS 7.8 ⚠ CISA KEV EPSS 0.00922 Ransomware: known
Act now
  • Listed on CISA KEV (known exploited in the wild)
  • Linked to known ransomware campaigns
  • SSVC exploitation status: active
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

15
microsoft windows 10 1507< 10.0.10240.20978
microsoft windows 10 1607< 10.0.14393.7969
microsoft windows 10 1809< 10.0.17763.7136
microsoft windows 10 21h2< 10.0.19044.5737
microsoft windows 10 22h2< 10.0.19045.5737
microsoft windows 11 22h2< 10.0.22621.5189
microsoft windows 11 23h2< 10.0.22631.5189
microsoft windows 11 24h2< 10.0.26100.3775
⚠

Public Exploits & PoCs

2
pocwww.vicarius.io · cve-2025-29824-windows-common-log-file-system-driver-elev...www.vicarius.io
pocwww.vicarius.io · cve-2025-29824-windows-common-log-file-system-driver-elev...www.vicarius.io
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Apr 2025 · 06:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
msrcCVE-2025-29824Elevation of Privilege
cisaKEV-CVE-2025-29824
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-29824US Government Resource
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