CVE-2026-24295 is a race condition vulnerability classified under CWE-362, found in the Windows Device Association Service component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The vulnerability arises due to 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 gain elevated privileges. This race condition allows the attacker to bypass normal security controls, potentially executing code or actions with higher privileges than intended. The vulnerability requires the attacker to have local access and some privileges already, and the attack complexity is high, meaning exploitation is non-trivial but feasible. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability, with no user interaction needed. Although no exploits are reported in the wild yet, the vulnerability poses a significant risk to legacy systems still running this older Windows 10 version. The lack of published patches at the time of disclosure increases the urgency for organizations to implement interim mitigations and prepare for updates from Microsoft.

If exploited, this vulnerability allows an attacker with local access and limited privileges to elevate their privileges to a higher level, potentially SYSTEM or administrator level. This can lead to full system compromise, including unauthorized access to sensitive data, modification or deletion of critical files, installation of persistent malware, and disruption of system availability. Organizations relying on Windows 10 Version 1607, especially those with legacy systems in critical infrastructure, government, or enterprise environments, face increased risk of insider threats or lateral movement by attackers who have gained initial footholds. The high severity and impact on confidentiality, integrity, and availability make this a critical concern for affected systems. The absence of known exploits in the wild currently limits immediate widespread impact but does not reduce the potential threat once exploit code becomes available.

1. Restrict local access to systems running Windows 10 Version 1607 to trusted users only, minimizing the risk of local privilege escalation. 2. Implement strict access controls and monitoring on affected systems to detect unusual local activity or attempts to exploit race conditions. 3. Use application whitelisting and endpoint protection solutions that can detect and block suspicious behavior indicative of exploitation attempts. 4. Prepare for and prioritize deployment of official patches or security updates from Microsoft as soon as they become available. 5. Consider upgrading affected systems to a supported, more recent version of Windows 10 or later to eliminate exposure to this legacy vulnerability. 6. Employ system hardening best practices, such as disabling unnecessary services and limiting the use of privileged accounts. 7. Conduct regular security audits and penetration testing focused on privilege escalation vectors to identify and remediate similar issues proactively.