CVE-2025-62218 is a race condition vulnerability classified under CWE-362, found in the Microsoft Wireless Provisioning System component of Windows 10 Version 1809 (build 10.0.17763.0). The vulnerability arises from improper synchronization when multiple threads or processes concurrently access shared resources, leading to a state where an attacker with local authorized access can manipulate the timing of operations to escalate privileges. Specifically, the flaw allows an attacker to execute code with elevated privileges by exploiting the race condition, potentially gaining SYSTEM-level access from a lower privileged account. The vulnerability has a CVSS 3.1 base score of 7.0, indicating high severity, with the vector indicating local attack vector (AV:L), high attack complexity (AC:H), low privileges required (PR:L), no user interaction (UI:N), unchanged scope (S:U), and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). Although no known exploits are reported in the wild, the vulnerability's nature and impact make it a critical concern for affected systems. The lack of available patches at the time of publication increases the urgency for mitigation through alternative means such as system upgrades or applying vendor guidance once available. This vulnerability primarily threatens environments where Windows 10 Version 1809 is still in use, particularly in enterprise or industrial settings where legacy systems persist.

For European organizations, the impact of CVE-2025-62218 can be substantial, especially in sectors relying on legacy Windows 10 Version 1809 systems, such as manufacturing, healthcare, and government agencies. Successful exploitation allows local attackers to escalate privileges, potentially leading to full system compromise, unauthorized access to sensitive data, disruption of critical services, and lateral movement within networks. This can result in data breaches, operational downtime, and regulatory non-compliance, particularly under GDPR requirements for data protection. The high impact on confidentiality, integrity, and availability means that attackers could manipulate or destroy data, install persistent malware, or disrupt wireless provisioning services critical for device connectivity. Given the high attack complexity and requirement for local access, the threat is more likely to affect organizations with insufficient endpoint security controls or where insider threats are a concern. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the potential for future exploitation, emphasizing the need for proactive defense.

1. Upgrade affected systems from Windows 10 Version 1809 to a supported and patched Windows version to eliminate exposure to this vulnerability. 2. Until upgrades are feasible, implement strict local access controls and limit the number of users with local privileges to reduce the attack surface. 3. Employ endpoint detection and response (EDR) solutions to monitor for suspicious activities indicative of privilege escalation attempts. 4. Apply application whitelisting and restrict execution of unauthorized code to prevent exploitation. 5. Regularly audit and harden wireless provisioning configurations and related services to minimize risk. 6. Monitor vendor communications closely for patches or workarounds and apply them promptly once released. 7. Conduct user training to raise awareness about the risks of local privilege escalation and insider threats. 8. Implement network segmentation to contain potential breaches originating from compromised endpoints. These targeted measures go beyond generic advice by focusing on the specific affected component and environment.