CVE-2025-62469 is a race condition vulnerability categorized under CWE-362, found in the Microsoft Brokering File System within Windows 11 Version 24H2 (build 10.0.26100.0). The vulnerability stems from improper synchronization during concurrent execution of shared resources, allowing multiple threads or processes to access and manipulate shared data without adequate locking mechanisms. This can lead to a state where an authorized local attacker can escalate privileges by exploiting the timing window created by the race condition. The Brokering File System is responsible for managing resource sharing and coordination between processes; flaws here can undermine system security. The CVSS v3.1 base score is 7.0, reflecting high severity due to the impact on confidentiality, integrity, and availability, though exploitation requires local access and high attack complexity. No user interaction is needed, and the scope is unchanged, meaning the vulnerability affects only the local system. No public exploits are known yet, but the vulnerability is published and should be addressed promptly. The lack of a patch link suggests a fix is forthcoming or in progress. This vulnerability highlights the criticality of proper synchronization in OS-level resource management to prevent privilege escalation.

If exploited, this vulnerability allows an attacker with local access and limited privileges to escalate their rights to higher privilege levels, potentially SYSTEM or administrator. This can lead to full system compromise, allowing unauthorized access to sensitive data, modification or deletion of critical files, installation of persistent malware, and disruption of system availability. The breach of confidentiality, integrity, and availability could affect enterprise environments, government agencies, and critical infrastructure relying on Windows 11 24H2. The high complexity of exploitation limits widespread automated attacks but targeted attacks against high-value targets are plausible. Organizations with large Windows 11 deployments, especially those with multi-user environments or shared systems, face increased risk. The absence of known exploits in the wild currently reduces immediate threat but does not eliminate future risk once exploit code becomes available. The vulnerability could also be leveraged as a stepping stone for lateral movement within networks.

Organizations should monitor Microsoft security advisories closely and apply patches immediately once released to remediate this vulnerability. Until patches are available, restrict local access to trusted users only and enforce the principle of least privilege to minimize potential attackers’ ability to exploit the flaw. Employ application whitelisting and endpoint detection and response (EDR) solutions to detect suspicious privilege escalation attempts. Conduct thorough audits of user permissions and remove unnecessary local administrator rights. Use virtualization-based security features and enable Windows Defender Credential Guard where possible to limit privilege escalation impact. Additionally, implement strict process isolation and monitor system logs for anomalies related to file system brokering activities. Security teams should prepare incident response plans for potential exploitation scenarios and educate users about the risks of local privilege escalation vulnerabilities.