CVE-2025-22890
📋 TL;DR
This vulnerability in Defense Platform Home Edition allows attackers to escalate privileges to SYSTEM level on Windows systems through specific operations. Affected users are those running version 3.9.51.x or earlier of the software on Windows.
💻 Affected Systems
- Defense Platform Home Edition
⚠️ Risk & Real-World Impact
Worst Case
Full SYSTEM privilege compromise leading to complete host takeover, data theft, lateral movement, and persistence establishment.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install malware, or access protected system resources.
If Mitigated
Limited impact if proper network segmentation, least privilege principles, and endpoint protection are implemented.
🎯 Exploit Status
Requires attacker to perform specific operations on the system; likely requires some level of initial access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 3.9.51.x
Vendor Advisory: https://www.hummingheads.co.jp/dep/storelist/
Restart Required: Yes
Instructions:
1. Visit vendor advisory page. 2. Download latest version. 3. Install update. 4. Restart system.
🔧 Temporary Workarounds
Remove unnecessary privileges
windowsConfigure software to run with least privilege instead of SYSTEM
Application control
windowsUse Windows AppLocker or similar to restrict execution of Defense Platform
🧯 If You Can't Patch
- Uninstall Defense Platform Home Edition if not essential
- Implement strict network segmentation and monitor for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check installed version of Defense Platform Home Edition via Control Panel > Programs and FeaturesCheck Version:
wmic product where name="Defense Platform Home Edition" get versionVerify Fix Applied:
Verify version is newer than 3.9.51.x after update installation📡 Detection & Monitoring
Log Indicators:
- Unusual process creation with SYSTEM privileges
- Defense Platform service manipulation events
Network Indicators:
- Unusual outbound connections from SYSTEM processes
SIEM Query:
EventID=4688 AND NewProcessName="*defense*" AND SubjectUserName="SYSTEM"