CVE-2025-62565 is a use-after-free vulnerability classified under CWE-416 affecting the Windows Shell component in Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Use-after-free vulnerabilities occur when a program continues to use a pointer after the memory it points to has been freed, leading to undefined behavior such as memory corruption, crashes, or code execution. In this case, the flaw allows an authorized local attacker to elevate their privileges by exploiting improper memory management in the Windows Shell, a core component responsible for the graphical user interface and file management. The attacker must have local access and perform some user interaction to trigger the vulnerability, which can then be leveraged to gain higher privileges, potentially SYSTEM level. The CVSS v3.1 score of 7.3 indicates high severity, with metrics showing low attack complexity, low privileges required, and user interaction needed. The vulnerability impacts confidentiality, integrity, and availability, as an attacker could execute arbitrary code with elevated privileges, modify or delete data, or disrupt system operations. No public exploits or patches are currently available, increasing the urgency for organizations to prepare mitigations. The vulnerability was reserved in October 2025 and published in December 2025, indicating recent discovery and disclosure.

The impact of CVE-2025-62565 is significant for organizations still running Windows 10 Version 1607, a legacy operating system version that may be present in industrial, governmental, or enterprise environments with slow upgrade cycles. Successful exploitation allows local attackers to elevate privileges, potentially gaining full administrative control over affected systems. This can lead to unauthorized access to sensitive data, installation of persistent malware, disruption of critical services, and lateral movement within networks. Since the vulnerability affects confidentiality, integrity, and availability, it poses a comprehensive risk. The requirement for local access and user interaction somewhat limits remote exploitation but does not eliminate risk in environments where attackers can gain physical or remote desktop access. The lack of known exploits in the wild currently reduces immediate risk but also means defenders must be proactive before exploit code becomes available. Organizations relying on this Windows version for legacy applications or hardware compatibility are particularly vulnerable.

1. Immediately restrict local access to systems running Windows 10 Version 1607 to trusted users only, minimizing the risk of unauthorized local attacks. 2. Enforce the principle of least privilege by ensuring users operate with the minimum necessary permissions to reduce the impact of privilege escalation. 3. Monitor local user activities and audit logs for unusual behavior indicative of exploitation attempts, such as unexpected privilege escalations or shell activity. 4. Prepare for rapid deployment of patches once Microsoft releases an official fix; establish a patch management process prioritizing legacy systems. 5. Consider upgrading affected systems to a supported Windows version with ongoing security updates to eliminate exposure to this and other legacy vulnerabilities. 6. Employ application whitelisting and endpoint protection solutions capable of detecting anomalous behavior related to use-after-free exploitation. 7. Educate users about the risks of interacting with untrusted content or executing unknown files to reduce the likelihood of triggering the vulnerability.