CVE-2025-59282 is a race condition vulnerability classified under CWE-362, affecting Microsoft Windows 10 Version 1809 (build 17763.0). The vulnerability arises from improper synchronization when concurrent execution occurs using shared resources within Inbox COM Objects, a component responsible for certain inter-process communications and object management in Windows. This improper synchronization allows an unauthorized attacker with local access to execute arbitrary code by triggering a race condition, potentially leading to privilege escalation or system compromise. The vulnerability requires the attacker to have local access and involves user interaction, with a high attack complexity, meaning exploitation is non-trivial but feasible. The CVSS v3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability (all rated high), but limited by the need for local access and user interaction. No known exploits are currently in the wild, and no official patches have been released as of the publication date. The vulnerability is significant because Windows 10 Version 1809, although superseded by newer versions, remains in use in various enterprise environments, especially where legacy applications or hardware compatibility is critical. The race condition could allow attackers to bypass security controls, execute arbitrary code, and potentially gain elevated privileges, leading to full system compromise. The lack of patches means organizations must rely on mitigations and monitoring until updates are available.

For European organizations, the impact of CVE-2025-59282 can be substantial, particularly for those still operating Windows 10 Version 1809 in production environments. Successful exploitation could lead to unauthorized code execution, allowing attackers to steal sensitive data, disrupt operations, or deploy ransomware and other malware. Critical sectors such as finance, healthcare, government, and industrial control systems could face severe consequences including data breaches, operational downtime, and regulatory penalties under GDPR. The requirement for local access and user interaction somewhat limits remote exploitation but insider threats or compromised user accounts could still leverage this vulnerability. The absence of patches increases risk exposure, necessitating heightened vigilance. Organizations relying on legacy systems or with slow patch management cycles are especially vulnerable. The potential for full compromise of confidentiality, integrity, and availability underscores the need for immediate mitigation efforts.

1. Restrict local access to systems running Windows 10 Version 1809 by enforcing strict physical and network access controls. 2. Implement least privilege principles to limit user permissions and reduce the risk of exploitation via user interaction. 3. Employ application whitelisting and endpoint detection and response (EDR) solutions to monitor for unusual process behavior indicative of race condition exploitation. 4. Educate users about the risks of interacting with untrusted content or executing unknown applications to minimize social engineering vectors. 5. Isolate legacy systems running this OS version from critical network segments and sensitive data repositories. 6. Regularly audit and monitor logs for signs of suspicious activity related to COM object manipulation or race condition exploitation attempts. 7. Plan and prioritize upgrading affected systems to supported Windows versions with active security updates. 8. Stay informed on vendor advisories for patches or workarounds and apply them promptly once available.