CVEvulnerability
CVE-2025-32706
CISA Known Exploited Vulnerability
Microsoft Windows Common Log File System (CLFS) Driver Heap-Based Buffer Overflow Vulnerability — Microsoft Windows
Microsoft Windows Common Log File System (CLFS) Driver contains a heap-based buffer overflow vulnerability that allows an authorized attacker to elevate privileges locally.
- Added to KEV
- 2025-05-13
- Remediation due
- 2025-06-03
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Notes
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-32706 ; https://nvd.nist.gov/vuln/detail/CVE-2025-32706
- Status
- Analyzed
- Published
- 2025-05-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-20
Description
Improper input validation in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
Affected configurations
• microsoft windows 10 1507 (< 10.0.10240.21014)
• microsoft windows 10 1607 (< 10.0.14393.8066)
• microsoft windows 10 1809 (< 10.0.17763.7314)
• microsoft windows 10 21h2 (< 10.0.19044.5854)
• microsoft windows 10 22h2 (< 10.0.19045.5854)
• microsoft windows 11 22h2 (< 10.0.22621.5335)
• microsoft windows 11 23h2 (< 10.0.22631.5335)
• microsoft windows 11 24h2 (< 10.0.26100.3981)
• microsoft windows server 2008
• microsoft windows server 2008 r2
• microsoft windows server 2012 r2
• microsoft windows server 2016 (< 10.0.14393.8066)
• microsoft windows server 2019 (< 10.0.17763.7314)
• microsoft windows server 2022 (< 10.0.20348.3692)
• microsoft windows server 2022 23h2 (< 10.0.25398.1611)
• microsoft windows server 2025 (< 10.0.26100.3981)
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32706 Vendor Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-32706-detection-script-elevation-of-privilege-vulnerability-in-microsoft-windows-common-log-file-system-driver Exploit, Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-32706-mitigation-script-elevation-of-privilege-vulnerability-in-microsoft-windows-common-log-file-system-driver Exploit, Mitigation, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32706 US Government Resource