CVE-2025-59193 is a race condition vulnerability categorized under CWE-362, affecting Microsoft Windows 11 Version 25H2 (build 10.0.26200.0). The flaw exists in Windows Management Services, where concurrent execution of shared resources occurs without proper synchronization. This improper handling allows an attacker with local, low-level privileges to exploit the timing window to elevate their privileges on the system. The vulnerability does not require user interaction but does require the attacker to have some level of authorized local access. The race condition can lead to unauthorized modification or execution of privileged code, compromising confidentiality, integrity, and availability of the system. The CVSS v3.1 score is 7.0, indicating high severity, with attack vector local, attack complexity high, privileges required low, and no user interaction needed. Currently, there are no known exploits in the wild, and no patches have been released, but the vulnerability is publicly disclosed and should be addressed promptly. The race condition nature means exploitation requires precise timing and conditions, increasing attack complexity but not eliminating risk. This vulnerability is particularly concerning for environments where Windows 11 25H2 is deployed in sensitive or critical roles, as privilege escalation can lead to full system compromise.

For European organizations, this vulnerability poses a significant risk especially in sectors relying heavily on Windows 11 25H2, such as finance, healthcare, government, and critical infrastructure. Successful exploitation can allow attackers to escalate privileges from a low-level user to SYSTEM or equivalent, enabling installation of malware, data exfiltration, or disruption of services. This can lead to breaches of sensitive personal data protected under GDPR, operational downtime, and reputational damage. The high attack complexity and requirement for local access somewhat limit remote exploitation but insider threats or attackers who gain initial footholds through phishing or other means could leverage this vulnerability to deepen their access. The lack of a patch at the time of disclosure increases exposure, necessitating immediate compensating controls. Organizations with remote or hybrid workforces using Windows 11 25H2 must be particularly vigilant, as endpoint compromise could lead to privilege escalation and lateral movement within networks.

1. Implement strict local access controls and limit user privileges to the minimum necessary to reduce the pool of potential attackers with local access. 2. Monitor Windows Management Services and system logs for unusual or suspicious activity indicative of race condition exploitation attempts. 3. Employ endpoint detection and response (EDR) solutions capable of detecting privilege escalation behaviors. 4. Restrict or disable unnecessary Windows Management Services features if feasible until patches are available. 5. Enforce application whitelisting and code integrity policies to prevent unauthorized code execution. 6. Prepare for rapid deployment of official patches once released by Microsoft, including testing in controlled environments. 7. Educate users and administrators about the risks of local privilege escalation and the importance of maintaining updated systems. 8. Use virtualization-based security features available in Windows 11 to add layers of protection against privilege escalation. 9. Regularly audit and review local user accounts and permissions to identify and remove unnecessary privileges. 10. Consider network segmentation to limit lateral movement if an endpoint is compromised.