CVE-2025-60719
📋 TL;DR
This vulnerability allows an authorized attacker to exploit an untrusted pointer dereference in the Windows Ancillary Function Driver for WinSock to elevate privileges locally. It affects Windows systems with the vulnerable driver component. Attackers need initial access to execute code on the target system.
💻 Affected Systems
- Microsoft Windows
📦 What is this software?
Windows 10 1607 by Microsoft
Windows 10 1607 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 1809 by Microsoft
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 24h2 by Microsoft
Windows 11 25h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with SYSTEM privileges, enabling installation of persistent malware, credential theft, and lateral movement across the network.
Likely Case
Local privilege escalation from a standard user account to SYSTEM or administrator privileges, allowing attackers to bypass security controls and maintain persistence.
If Mitigated
Limited impact if proper endpoint protection, least privilege principles, and network segmentation are implemented, though local compromise remains possible.
🎯 Exploit Status
Exploitation requires authorized access to the system first. The vulnerability involves pointer manipulation in kernel-space driver code.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft Security Update Guide for specific KB numbers
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-60719
Restart Required: Yes
Instructions:
1. Open Windows Update Settings. 2. Click 'Check for updates'. 3. Install all available security updates. 4. Restart the system when prompted. For enterprise environments, deploy through WSUS, Microsoft Endpoint Configuration Manager, or equivalent patch management solution.
🔧 Temporary Workarounds
Restrict user privileges
windowsImplement least privilege principles to limit what standard users can do, reducing the impact of successful privilege escalation.
Enable exploit protection
windowsUse Windows Defender Exploit Guard or similar solutions to apply exploit mitigation techniques.
🧯 If You Can't Patch
- Implement strict network segmentation to limit lateral movement from compromised systems
- Deploy endpoint detection and response (EDR) solutions to detect privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check if the system has applied the latest Windows security updates from Microsoft. The specific patch can be verified through the Microsoft Security Update Guide.Check Version:
wmic os get caption,version,buildnumberVerify Fix Applied:
Verify that the security update KB number referenced in the Microsoft advisory is installed via 'Settings > Windows Update > Update history' or 'wmic qfe list' command.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation with SYSTEM privileges from user accounts
- Suspicious driver loading or kernel-mode activity
- Event ID 4688 (process creation) showing privilege escalation patterns
Network Indicators:
- Lateral movement attempts from previously compromised systems
- Unexpected outbound connections from systems after local compromise
SIEM Query:
Process creation where parent process is user-level and child process runs as SYSTEM or with elevated privileges, excluding legitimate administrative tools