CVE-2025-59193 is a race condition vulnerability classified under CWE-362, found in the Windows Management Services component of Microsoft Windows 11 Version 25H2 (build 10.0.26200.0). The vulnerability arises due to improper synchronization when multiple threads or processes concurrently access shared resources, leading to a race condition. This flaw can be exploited by an attacker who already has low-level local privileges to escalate their privileges to a higher level, potentially SYSTEM or administrator, by manipulating the timing of resource access. The vulnerability does not require user interaction but does require local access, making it a local privilege escalation (LPE) vector. The CVSS v3.1 base score is 7.0, indicating high severity, with attack vector local, attack complexity high, privileges required low, no user interaction, and impacts on confidentiality, integrity, and availability all rated high. No public exploits or patches are currently available, but the vulnerability is officially published and reserved since September 2025. The race condition could allow attackers to bypass security controls, execute arbitrary code with elevated privileges, or disrupt system operations, posing a significant threat to affected systems.

For European organizations, this vulnerability poses a serious risk as it enables local attackers to gain elevated privileges on Windows 11 Version 25H2 systems. This could lead to unauthorized access to sensitive data, disruption of critical services, and potential full system compromise. Organizations in sectors such as finance, healthcare, government, and critical infrastructure are particularly vulnerable due to their reliance on Windows 11 and the potential impact of privilege escalation on data confidentiality and system integrity. The vulnerability could be leveraged as a stepping stone for lateral movement within networks, increasing the risk of widespread compromise. Since the attack requires local access, insider threats or attackers who gain initial foothold through other means (e.g., phishing, malware) could exploit this flaw to deepen their control. The absence of known exploits currently provides a window for proactive defense, but the high severity score demands urgent attention to prevent future exploitation.

1. Restrict local access to Windows 11 Version 25H2 systems, especially for users who do not require administrative privileges. 2. Implement strict user account control (UAC) policies and limit the number of users with low-level privileges that could exploit this vulnerability. 3. Monitor and audit logs for unusual privilege escalation attempts or suspicious activity related to Windows Management Services. 4. Apply any official patches or updates from Microsoft immediately once they become available. 5. Employ endpoint detection and response (EDR) solutions capable of detecting race condition exploitation patterns or abnormal process/thread behavior. 6. Use application whitelisting and privilege management tools to reduce the attack surface. 7. Conduct regular security training to raise awareness about the risks of local privilege escalation and insider threats. 8. Consider network segmentation to limit the impact of compromised systems and restrict lateral movement opportunities.