CVE-2025-60709: 
vulnerability analysis and mitigation

The Windows Common Log File System Driver Elevation of Privilege Vulnerability (CVE-2025-60709) is a security flaw discovered in November 2025. This vulnerability is characterized by an out-of-bounds read in the Windows Common Log File System Driver that allows an authorized attacker to elevate privileges locally. The vulnerability affects multiple versions of Windows operating systems, including Windows Server 2008, 2012, 2016, 2019, 2022, 2025, and various versions of Windows 10 and 11 (NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The specific flaw exists within the clfs.sys driver and results from improper validation of user-supplied data, which can lead to a read past the end of an allocated memory region. The vulnerability is classified as CWE-125 (Out-of-bounds Read) (ZDI, NVD).

The vulnerability allows local attackers to disclose sensitive information on affected installations of Microsoft Windows. An attacker can potentially leverage this vulnerability in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel, leading to privilege escalation (ZDI).

Microsoft has released security updates to address this vulnerability. Users are advised to apply the appropriate patches for their affected Windows systems, including KB5068864 for Windows 10 1607, KB5068791 for Windows 10 1809, and various other KB updates for different Windows versions (Rapid7).