CVE-2025-60709 is a vulnerability classified under CWE-125 (Out-of-bounds Read) found in the Windows Common Log File System Driver component of Microsoft Windows 11 Version 25H2 (build 10.0.26200.0). This vulnerability arises due to improper bounds checking when the driver processes certain inputs, leading to an out-of-bounds read condition. An authorized attacker with local access can exploit this flaw to read memory beyond the intended buffer boundaries, potentially leaking sensitive information or causing memory corruption. This memory corruption can be leveraged to elevate privileges on the affected system, allowing the attacker to gain higher-level access rights than originally granted. The vulnerability does not require user interaction and has a relatively low attack complexity, but it does require local privileges to initiate the exploit. The CVSS v3.1 base score is 7.8, indicating a high severity level with high impact on confidentiality, integrity, and availability. No public exploits or proof-of-concept code have been reported in the wild as of the publication date (November 11, 2025). The vulnerability is currently unpatched, with no official patch links provided yet, but Microsoft has acknowledged and published the advisory. This vulnerability poses a significant risk in environments where multiple users have local access or where attackers can gain initial foothold with limited privileges. The Common Log File System Driver is a core component, so exploitation could affect a wide range of Windows 11 systems running the specified version.

For European organizations, this vulnerability presents a serious risk primarily in environments where multiple users have local access to Windows 11 Version 25H2 systems, such as corporate desktops, shared workstations, or virtual desktop infrastructures. Successful exploitation could allow attackers to escalate privileges from a limited user account to SYSTEM or administrator level, enabling full control over the affected machine. This can lead to unauthorized access to sensitive data, disruption of critical services, and the potential for lateral movement within enterprise networks. Sectors such as finance, healthcare, government, and critical infrastructure in Europe could face significant operational and reputational damage if exploited. The lack of a patch at the time of disclosure increases the window of exposure. Although no exploits are currently known in the wild, the vulnerability’s characteristics make it a likely target for attackers seeking local privilege escalation vectors. Organizations relying heavily on Windows 11 25H2, especially those with stringent data protection requirements under GDPR, must consider this a high-priority threat.

1. Implement strict local access controls to limit the number of users with local login capabilities on Windows 11 Version 25H2 systems. 2. Employ application whitelisting and endpoint detection and response (EDR) solutions to monitor for suspicious activities indicative of privilege escalation attempts. 3. Enforce the principle of least privilege by ensuring users operate with the minimum necessary permissions. 4. Segment networks to reduce the risk of lateral movement if a local compromise occurs. 5. Regularly audit and review local user accounts and remove or disable unnecessary accounts. 6. Monitor Windows event logs for anomalies related to the Common Log File System Driver or privilege escalation attempts. 7. Prepare for rapid deployment of patches once Microsoft releases an official fix; establish a patch management process prioritizing this vulnerability. 8. Consider temporary mitigations such as disabling or restricting access to the vulnerable driver component if feasible and supported by Microsoft guidance. 9. Educate IT staff and users about the risks of local privilege escalation and the importance of reporting suspicious behavior promptly.