CVE-2025-50152 is an out-of-bounds read vulnerability classified under CWE-125, found in the Windows Kernel of Windows 10 Version 1507 (build 10.0.10240.0). This vulnerability arises when the kernel improperly accesses memory outside the bounds of allocated buffers, leading to potential leakage or corruption of sensitive data. An attacker with authorized local access can exploit this flaw to elevate their privileges, gaining higher-level system rights without requiring user interaction. The vulnerability affects the core kernel component, which manages critical system operations, making the impact on confidentiality, integrity, and availability severe. The CVSS v3.1 score of 7.8 reflects high severity, with attack vector local, low attack complexity, and privileges required at a low level. No patches are currently linked, indicating that remediation may require upgrading or awaiting official fixes. No known exploits have been observed in the wild, but the vulnerability's characteristics make it a candidate for future exploitation, especially in environments where legacy Windows 10 versions persist. The flaw could be leveraged to bypass security controls, execute arbitrary code with elevated privileges, or cause system instability.

The impact of CVE-2025-50152 is significant for organizations still running Windows 10 Version 1507, particularly in legacy or industrial environments where upgrading is challenging. Successful exploitation allows an attacker with local access to escalate privileges, potentially leading to full system compromise. This can result in unauthorized access to sensitive data, disruption of critical services, installation of persistent malware, and lateral movement within networks. The vulnerability threatens confidentiality by exposing kernel memory contents, integrity by enabling unauthorized code execution, and availability by causing system crashes or instability. Although exploitation requires local access, insider threats or attackers who gain initial footholds through other means could leverage this vulnerability to deepen their control. The absence of known exploits currently reduces immediate risk but does not eliminate the threat, especially as exploit development may emerge. Organizations with high-value targets or regulatory compliance requirements face increased risk due to potential data breaches and operational disruptions.

To mitigate CVE-2025-50152, organizations should prioritize upgrading affected systems from Windows 10 Version 1507 to a supported and patched Windows version, as no direct patch is currently linked. Restrict local access to trusted users only, employing strict access controls and monitoring for unusual privilege escalation attempts. Implement application whitelisting and endpoint detection and response (EDR) solutions to detect anomalous kernel-level activities. Regularly audit and harden user permissions to minimize the number of accounts with local privileges. Employ network segmentation to limit lateral movement if an attacker gains local access. Monitor system logs for signs of exploitation attempts, such as unexpected kernel errors or privilege escalations. If upgrading is not immediately feasible, consider isolating legacy systems from critical networks and sensitive data. Stay alert for vendor updates or security advisories providing patches or workarounds. Finally, conduct user training to reduce the risk of initial compromise that could lead to local access exploitation.