CVE-2025-62219 is a vulnerability identified in Microsoft Windows 10 Version 1809 (build 10.0.17763.0) affecting the Microsoft Wireless Provisioning System. The root cause is a double free condition (CWE-415), where the system erroneously frees the same memory twice, leading to undefined behavior such as memory corruption. This flaw can be exploited by an authorized local attacker with low privileges to elevate their privileges on the affected system. The vulnerability does not require user interaction but does require local access and has a high attack complexity, indicating that exploitation is non-trivial but feasible. Successful exploitation could allow the attacker to execute arbitrary code with elevated privileges, compromising system confidentiality, integrity, and availability. The CVSS v3.1 base score is 7.0 (high), reflecting the significant impact on the system if exploited. No public exploits or active exploitation in the wild have been reported as of the publication date. The vulnerability is particularly concerning for environments where Windows 10 Version 1809 remains in use, especially in enterprise or critical infrastructure contexts where privilege escalation can lead to broader network compromise. The lack of an available patch at the time of reporting necessitates immediate mitigation strategies to reduce risk.

For European organizations, this vulnerability poses a significant risk due to the potential for local attackers to gain elevated privileges, which can lead to unauthorized access to sensitive data, disruption of services, and further lateral movement within networks. Organizations relying on legacy Windows 10 Version 1809 systems, particularly in sectors such as government, finance, healthcare, and critical infrastructure, may face increased exposure. The ability to escalate privileges locally could enable attackers to bypass security controls, deploy malware, or exfiltrate confidential information. Given the high confidentiality, integrity, and availability impacts, exploitation could result in severe operational and reputational damage. The absence of known exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits over time. The complexity of exploitation means that insider threats or attackers with some level of access are the most likely vectors. European entities with strict regulatory requirements for data protection and system integrity must prioritize addressing this vulnerability to maintain compliance and security posture.

1. Apply official security patches from Microsoft immediately once they become available to remediate the double free vulnerability. 2. Until patches are released, restrict local access to systems running Windows 10 Version 1809 by enforcing strict access controls and limiting administrative privileges. 3. Monitor system logs and wireless provisioning system activities for unusual behavior indicative of exploitation attempts. 4. Employ endpoint detection and response (EDR) solutions capable of detecting memory corruption and privilege escalation attempts. 5. Consider upgrading affected systems to a more recent, supported version of Windows 10 or Windows 11 to reduce exposure to legacy vulnerabilities. 6. Conduct regular security audits and vulnerability assessments focusing on local privilege escalation vectors. 7. Educate users and administrators about the risks of local privilege escalation vulnerabilities and the importance of maintaining updated systems. 8. Implement network segmentation to limit the impact of compromised endpoints. These steps go beyond generic advice by focusing on interim controls and proactive monitoring tailored to the specific vulnerability context.