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Vulnerabilities

Vulnerability · CVE-2025-32701

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

Published May 13, 2025 · catalog updated Jun 17, 2026 · Microsoft Windows Server 2012 R2

Patch now

CVE-2025-32701 is in the CISA known-exploited catalog, due Jun 3, 2025. Confirm Microsoft Windows Server 2012 R2 against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High7.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
1.42%
Remediation
Remediation guidance
Affected products
cpe microsoft/windows 10 1507 · cpe microsoft/windows 10 1607 · cpe microsoft/windows 10 1809 · cpe microsoft/windows 10 21h2 · cpe microsoft/windows 10 22h2 · cpe microsoft/windows 11 22h2

Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/windows 10 1507version unspecified
  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1809version unspecified
  • cpe microsoft/windows 10 21h2version unspecified
  • cpe microsoft/windows 10 22h2version unspecified
  • cpe microsoft/windows 11 22h2version unspecified
  • cpe microsoft/windows 11 23h2version unspecified
  • vendor Microsoft Windowsversion unspecified
  • vendor Microsoft Windows Server 2012 R2 6.3.9600.0 <6.3.9600.225776.3.9600.0 <6.3.9600.22577

How to fix CVE-2025-32701

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-32701 is in the CISA known-exploited catalog, due Jun 3, 2025. Confirm Microsoft Windows Server 2012 R2 against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with Microsoft Windows Server 2012 R2 6.3.9600.0 <6.3.9600.22577 6.3.9600.0 <6.3.9600.22577. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-416: Use After Free. EPSS 1.42%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2025 · Catalog

    Detected

    Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

  2. May 13, 2025 · CISA KEV

    Known exploited

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

  3. Jun 3, 2025 · CISA KEV

    Remediation due

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

  4. Jun 17, 2026 · Catalog

    Updated

    Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

Sources

  • CISA KEVConfirmed exploitationCVE-2025-32701

    Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2025-32701

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-32701

    30-day exploitation probability 1.4%

    first.org
  • EUVDVulnerability recordEUVD-2025-14443

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

    euvd.enisa.europa.eu
  • NIST NVDVulnerability recordCVE-2025-32701

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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2025-32701

    Microsoft Windows Common Log File System (CLFS) Driver contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.