CVE-2025-24062
📋 TL;DR
CVE-2025-24062 is a local privilege escalation vulnerability in Windows Desktop Window Manager (DWM) Core Library due to improper input validation. An authenticated attacker can exploit this to gain SYSTEM-level privileges on affected Windows systems. This affects Windows workstations and servers where users have local access.
💻 Affected Systems
- Windows Desktop Window Manager (DWM) Core Library
📦 What is this software?
Windows 10 21h2 by Microsoft
Windows 10 22h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 22h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 24h2 by Microsoft
Windows 11 24h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
An attacker with standard user privileges gains full SYSTEM-level control over the Windows system, enabling installation of malware, credential theft, persistence mechanisms, and complete system compromise.
Likely Case
Malicious insider or malware with user-level access escalates to administrative privileges to disable security controls, install backdoors, or move laterally within the network.
If Mitigated
With proper privilege separation and least privilege principles, impact is limited to the compromised user account without system-wide compromise.
🎯 Exploit Status
Requires local authenticated access. Exploitation likely involves crafted input to DWM functions to trigger privilege escalation.
🛠️ 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-2025-24062
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.
🔧 Temporary Workarounds
Restrict Local Access
windowsLimit local interactive logon to essential users only to reduce attack surface
Implement Least Privilege
windowsEnsure users operate with minimal necessary privileges to limit impact if exploited
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable systems
- Deploy application control policies to prevent execution of unauthorized binaries
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for missing security patches related to CVE-2025-24062 or run 'wmic qfe list' to see installed updatesCheck Version:
systeminfo | findstr /B /C:"OS Name" /C:"OS Version"Verify Fix Applied:
Verify the specific KB patch for CVE-2025-24062 is installed via Windows Update history or 'wmic qfe list | findstr KB'📡 Detection & Monitoring
Log Indicators:
- Unexpected privilege escalation events in Windows Security logs (Event ID 4672)
- Suspicious DWM process behavior or crashes
Network Indicators:
- Unusual outbound connections from previously low-privilege accounts after local access
SIEM Query:
EventID=4672 AND SubjectUserName!=*$ AND NewProcessName contains 'system' OR ParentProcessName contains 'dwm'