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CVE-2025-29824

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

7.8 HIGHActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 13.9%
  1. Published8 Apr 2025
  2. Added to CISA KEV8 Apr 2025
  3. Remediation due29 Apr 2025
Actively exploited (CISA KEV)

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

Added to KEV: 8 Apr 2025Federal remediation due: 29 Apr 2025Used in ransomware

Description

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

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

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
Microsoft Windows Server 2008r2
Microsoft Windows Server 2012r2
Microsoft Windows Server 2016< 10.0.14393.7969
Microsoft Windows Server 2019< 10.0.17763.7136
Microsoft Windows Server 2022< 10.0.20348.3453
Microsoft Windows Server 2022 23h2< 10.0.25398.1551
Microsoft Windows Server 2025< 10.0.26100.3775

Remediation

Fixed in
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
Microsoft Windows Server 2016≥ 10.0.14393.7969
Microsoft Windows Server 2019≥ 10.0.17763.7136

References

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Frequently asked

Is CVE-2025-29824 being actively exploited?

Yes. CVE-2025-29824 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 8 Apr 2025. It has been used in ransomware campaigns.

How severe is CVE-2025-29824?

CVE-2025-29824 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 13.9% probability of exploitation.

Which products are affected by CVE-2025-29824?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, and 10 more.

How do I fix CVE-2025-29824?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.20978, Microsoft Windows 10 1607 10.0.14393.7969, Microsoft Windows 10 1809 10.0.17763.7136 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-29824 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.