Windows OS: Use after free in Windows Common Log File System Driver (CVE-2025-29824) #shorts

Summary

Today, we're discussing a critical zero-day vulnerability impacting several Windows operating systems: CVE-2025-29824. This vulnerability is actively being exploited and poses a significant threat to users by allowing privilege escalation attacks.

Product details

The affected products include a wide range of Microsoft Windows versions, such as Windows 10 versions 1507, 1607, 1809, 21H2, 22H2, Windows 11 versions 22H2, 22H3, 23H2, 24H2, Windows Server 2019, 2022, and 2025 editions, as well as legacy versions like Windows Server 2008 and 2012. All mentioned versions under specific builds are susceptible to this vulnerability.

Vulnerability type summary

CVE-2025-29824 is categorized as a 'Use After Free' vulnerability, outlined under CWE-416. This flaw in the Windows Common Log File System (CLFS) driver could allow an attacker to gain elevated privileges locally with potentially devastating consequences.

Details of the vulnerability

The vulnerability, identified as CVE-2025-29824, is a use after free issue within the Windows CLFS driver. If exploited successfully, it allows authorized attackers to elevate privileges on the affected machine. This could pave the way for more severe cyber attacks, including ransomware deployment. Microsoft has confirmed that this vulnerability is under active exploitation, emphasizing the need for immediate mitigation actions.

Conclusion

In conclusion, CVE-2025-29824 is a serious zero-day vulnerability necessitating quick action. Microsoft has already released patches as part of their April 2025 Patch Tuesday update, and it is crucial for users and administrators to apply these updates promptly to protect their systems from potential threats and exploitations.

Watch the full video on YouTube: CVE-2025-29824

Remediation and exploitation details

This chain involves the following actors

This following systems are involved

Attack entry point

Remediation actions

Exploitation actions

Related Content

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CVE database technical details

CVE ID
CVE-2025-29824
Description
Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.
Provider
microsoft
CWE / problem types
CWE-416: Use After Free
Affected Software Versions
Microsoft:Windows 10 Version 1809:[{'version': '10.0.17763.0', 'lessThan': '10.0.17763.7136', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2019:[{'version': '10.0.17763.0', 'lessThan': '10.0.17763.7136', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2019 (Server Core installation):[{'version': '10.0.17763.0', 'lessThan': '10.0.17763.7136', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2022:[{'version': '10.0.20348.0', 'lessThan': '10.0.20348.3453', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 10 Version 21H2:[{'version': '10.0.19044.0', 'lessThan': '10.0.19044.5737', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 11 version 22H2:[{'version': '10.0.22621.0', 'lessThan': '10.0.22621.5189', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 10 Version 22H2:[{'version': '10.0.19045.0', 'lessThan': '10.0.19045.5737', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2025 (Server Core installation):[{'version': '10.0.26100.0', 'lessThan': '10.0.26100.3775', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 11 version 22H3:[{'version': '10.0.22631.0', 'lessThan': '10.0.22631.5189', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 11 Version 23H2:[{'version': '10.0.22631.0', 'lessThan': '10.0.22631.5189', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2022, 23H2 Edition (Server Core installation):[{'version': '10.0.25398.0', 'lessThan': '10.0.25398.1551', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 11 Version 24H2:[{'version': '10.0.26100.0', 'lessThan': '10.0.26100.3775', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2025:[{'version': '10.0.26100.0', 'lessThan': '10.0.26100.3775', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 10 Version 1507:[{'version': '10.0.10240.0', 'lessThan': '10.0.10240.20978', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows 10 Version 1607:[{'version': '10.0.14393.0', 'lessThan': '10.0.14393.7969', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2016:[{'version': '10.0.14393.0', 'lessThan': '10.0.14393.7969', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2016 (Server Core installation):[{'version': '10.0.14393.0', 'lessThan': '10.0.14393.7969', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2008 Service Pack 2:[{'version': '6.0.6003.0', 'lessThan': '6.0.6003.23220', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2008 Service Pack 2 (Server Core installation):[{'version': '6.0.6003.0', 'lessThan': '6.0.6003.23220', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2008 Service Pack 2:[{'version': '6.0.6003.0', 'lessThan': '6.0.6003.23220', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2008 R2 Service Pack 1:[{'version': '6.1.7601.0', 'lessThan': '6.1.7601.27670', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2008 R2 Service Pack 1 (Server Core installation):[{'version': '6.1.7601.0', 'lessThan': '6.1.7601.27670', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2012:[{'version': '6.2.9200.0', 'lessThan': '6.2.9200.25423', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2012 (Server Core installation):[{'version': '6.2.9200.0', 'lessThan': '6.2.9200.25423', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2012 R2:[{'version': '6.3.9600.0', 'lessThan': '6.3.9600.22523', 'versionType': 'custom', 'status': 'affected'}],Microsoft:Windows Server 2012 R2 (Server Core installation):[{'version': '6.3.9600.0', 'lessThan': '6.3.9600.22523', 'versionType': 'custom', 'status': 'affected'}]
Date Published
2025-04-08T17:23:34.083Z
Last Updated
2025-05-06T17:03:13.622Z