CVE-2025-53789
📋 TL;DR
This vulnerability allows an authenticated attacker on a Windows system to exploit a missing authentication check in the StateRepository API to elevate their privileges locally. It affects Windows systems with the vulnerable API component. Attackers need local access but can gain higher privileges once authenticated.
💻 Affected Systems
- Windows StateRepository API
📦 What is this software?
Windows 10 1507 by Microsoft
Windows 10 1507 by Microsoft
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 22h2 by Microsoft
Windows 11 23h2 by Microsoft
Windows 11 24h2 by Microsoft
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker gains SYSTEM-level privileges, enabling complete system compromise, data theft, persistence installation, and lateral movement.
Likely Case
An authenticated user with standard privileges escalates to administrator or SYSTEM privileges to bypass security controls and install malware.
If Mitigated
With proper access controls and monitoring, impact is limited to isolated systems; attackers cannot pivot without additional vulnerabilities.
🎯 Exploit Status
Exploitation requires authenticated access but is likely straightforward once the missing authentication is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Microsoft's security update for specific KB numbers
Vendor Advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53789
Restart Required: Yes
Instructions:
1. Apply the latest Windows security update from Microsoft. 2. Restart the system as required. 3. Verify the patch is installed via Windows Update history.
🔧 Temporary Workarounds
Restrict local user access
windowsLimit the number of users with local login privileges to reduce attack surface.
Enable Windows Defender Application Control
windowsUse WDAC to restrict unauthorized code execution and mitigate privilege escalation attempts.
🧯 If You Can't Patch
- Implement strict least-privilege access controls for all user accounts.
- Monitor for suspicious privilege escalation attempts using Windows Event Logs and SIEM tools.
🔍 How to Verify
Check if Vulnerable:
Check Windows Update history for missing security patches related to CVE-2025-53789 or use Microsoft's security update guide.Check Version:
wmic os get caption, version, buildnumberVerify Fix Applied:
Verify that the latest Windows security update is installed and the system has been restarted.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation events in Windows Security Log (Event ID 4672, 4688)
- Suspicious StateRepository API calls
Network Indicators:
- None - this is a local exploit
SIEM Query:
EventID=4672 OR EventID=4688 | where ProcessName contains 'StateRepository'