CVE-2025-69875
📋 TL;DR
A local privilege escalation vulnerability in Quick Heal Total Security allows low-privileged users to restore quarantined files into protected system directories. This could enable attackers to place malicious files in high-privilege locations, potentially gaining elevated system access. Only users running the affected antivirus software are impacted.
💻 Affected Systems
- Quick Heal Total Security
📦 What is this software?
Total Security by Quickheal
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via privilege escalation to SYSTEM/root level access, enabling complete control over the affected system.
Likely Case
Local attacker gains administrative privileges on the compromised system, allowing installation of persistent malware, credential theft, or lateral movement.
If Mitigated
Limited impact with proper user privilege separation and endpoint protection monitoring in place.
🎯 Exploit Status
Proof-of-concept code is publicly available on GitHub. Exploitation requires local user access but minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-59439/
Restart Required: No
Instructions:
1. Check Quick Heal website for security updates. 2. Update to the latest version if available. 3. Monitor vendor communications for patch release.
🔧 Temporary Workarounds
Disable quarantine functionality
windowsTemporarily disable file quarantine feature to prevent exploitation
Open Quick Heal Total Security > Settings > Quarantine > Disable
Restrict local user privileges
windowsImplement least privilege principle to limit local user account capabilities
Use Windows Group Policy to restrict standard user permissions
🧯 If You Can't Patch
- Uninstall Quick Heal Total Security and replace with alternative antivirus solution
- Implement strict endpoint monitoring for file restoration activities in protected directories
🔍 How to Verify
Check if Vulnerable:
Check Quick Heal Total Security version in the application interface or via 'wmic product get name,version' commandCheck Version:
wmic product where "name like 'Quick Heal%'" get name,versionVerify Fix Applied:
Verify version is updated beyond 23.0.0 and test quarantine restore functionality📡 Detection & Monitoring
Log Indicators:
- File restoration events to protected system directories (C:\Windows\System32, etc.)
- Quick Heal quarantine restore logs showing unusual paths
Network Indicators:
- None - this is a local-only vulnerability
SIEM Query:
EventID=4663 AND ObjectName LIKE '%System32%' AND ProcessName LIKE '%QuickHeal%'