CVE-2025-60719 is a vulnerability classified under CWE-822 (Untrusted Pointer Dereference) affecting Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw resides in the Windows Ancillary Function Driver for WinSock, a component responsible for network socket operations. An untrusted pointer dereference occurs when the driver improperly handles pointers that can be controlled or influenced by an attacker, leading to memory corruption. This memory corruption can be leveraged by an authorized local attacker with low privileges to escalate their privileges on the system. The attack complexity is high, meaning exploitation requires specific conditions or knowledge, and no user interaction is needed. The vulnerability impacts confidentiality, integrity, and availability by potentially allowing attackers to execute arbitrary code with elevated privileges, modify system files, or cause system instability. Although no public exploits are known at this time, the vulnerability is serious due to the potential for local privilege escalation, which is a common step in multi-stage attacks. The affected product is Windows 10 Version 1607, an older but still in-use operating system version, particularly in legacy or specialized environments. No patches are currently linked, indicating that remediation may be pending or in progress. The CVSS v3.1 base score is 7.0, reflecting high severity with local attack vector, high attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.

The primary impact of CVE-2025-60719 is local privilege escalation, allowing an attacker with limited access to gain higher system privileges. This can lead to full system compromise, enabling installation of persistent malware, disabling security controls, or accessing sensitive data. Organizations running Windows 10 Version 1607, especially those with legacy systems or specialized applications that cannot be easily upgraded, face significant risk. The vulnerability could be exploited as part of a multi-stage attack chain, where initial access is gained through other means and then privileges are escalated to achieve broader control. Critical infrastructure, government agencies, and enterprises relying on legacy Windows 10 deployments are particularly vulnerable. The absence of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits once details become widely known. The high impact on confidentiality, integrity, and availability underscores the need for timely mitigation to prevent potential breaches or operational disruptions.

1. Apply official patches from Microsoft as soon as they become available for Windows 10 Version 1607 to address the vulnerability directly. 2. If patching is not immediately possible, restrict local access to affected systems by enforcing strict access controls and limiting user privileges. 3. Employ application whitelisting and endpoint detection and response (EDR) solutions to monitor for suspicious activities indicative of privilege escalation attempts. 4. Conduct regular audits of user accounts and permissions to minimize the number of users with local access rights. 5. Use network segmentation to isolate legacy systems running Windows 10 Version 1607 from critical network segments. 6. Educate system administrators and users about the risks of local privilege escalation and encourage reporting of unusual system behavior. 7. Consider upgrading affected systems to supported Windows versions where feasible to reduce exposure to legacy vulnerabilities. 8. Monitor security advisories from Microsoft and threat intelligence sources for updates on exploit availability and mitigation guidance.