CVE-2025-59282 is a race condition vulnerability classified under CWE-362, found in the Inbox COM Objects of Microsoft Windows 10 Version 1809 (build 17763.0). The flaw arises from improper synchronization during concurrent execution of shared resources, which can be manipulated by an unauthorized attacker with local access to execute arbitrary code. The vulnerability does not require privileges but does require user interaction, increasing the attack complexity. The CVSS v3.1 score is 7.0, indicating high severity, with impacts on confidentiality, integrity, and availability (all rated high). The race condition allows attackers to exploit timing issues in the COM object handling, potentially leading to memory corruption or execution of malicious payloads. No patches or exploits are currently publicly available, but the vulnerability is officially published and reserved since September 2025. This vulnerability affects legacy Windows 10 systems that remain in use in many enterprise environments, particularly those that have not migrated to newer Windows versions. The lack of a patch and the requirement for local access means attackers must already have some foothold or convince users to interact with malicious content. However, successful exploitation can lead to full system compromise, making this a critical concern for organizations relying on Windows 10 1809.

For European organizations, this vulnerability poses a significant risk especially to those still operating Windows 10 Version 1809 in enterprise environments, including government agencies, healthcare, finance, and critical infrastructure sectors. Exploitation can lead to unauthorized code execution, allowing attackers to escalate privileges, steal sensitive data, disrupt operations, or deploy ransomware. The requirement for local access and user interaction limits remote exploitation but does not eliminate risk, as phishing or insider threats could facilitate attack vectors. The high impact on confidentiality, integrity, and availability means that successful exploitation could result in data breaches, operational downtime, and loss of trust. Organizations with legacy systems or delayed patch management are particularly vulnerable. The absence of known exploits in the wild provides a window for proactive mitigation before active attacks emerge.

1. Immediately identify and inventory all systems running Windows 10 Version 1809 (build 17763.0) within the organization. 2. Restrict local user access to sensitive systems and enforce the principle of least privilege to minimize potential attackers' foothold. 3. Disable or restrict usage of Inbox COM Objects where feasible, or apply application whitelisting to prevent unauthorized code execution. 4. Implement strict user training and awareness programs to reduce the risk of social engineering or phishing that could trigger user interaction. 5. Monitor system logs and behavior for anomalies indicative of race condition exploitation attempts or unusual COM object activity. 6. Prioritize upgrading affected systems to supported Windows versions with active security updates to eliminate exposure. 7. Employ endpoint detection and response (EDR) solutions capable of detecting suspicious local code execution patterns. 8. Establish incident response plans specifically addressing local privilege escalation and code execution scenarios. 9. Stay informed on vendor advisories for patches or workarounds and apply them promptly once available.