CVE-2025-66676
📋 TL;DR
A vulnerability in IObit Unlocker v1.3.0.11 allows attackers to cause a Denial of Service (DoS) by sending specially crafted requests. This affects users running the vulnerable version of IObit Unlocker software. The vulnerability could render the application unresponsive or crash it.
💻 Affected Systems
- IObit Unlocker
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete service disruption of IObit Unlocker, potentially requiring system reboot to restore functionality.
Likely Case
Temporary unavailability of IObit Unlocker functionality until the process is restarted.
If Mitigated
Minimal impact with proper network controls and updated software.
🎯 Exploit Status
Proof of concept available on GitHub repository; exploitation appears straightforward based on CWE-400 description.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check IObit website for latest version (likely > v1.3.0.11)
Vendor Advisory: https://www.iobit.com/en/iobit-unlocker.php
Restart Required: No
Instructions:
1. Visit IObit Unlocker download page. 2. Download and install the latest version. 3. Replace the vulnerable v1.3.0.11 installation.
🔧 Temporary Workarounds
Network Access Control
WindowsRestrict network access to IObit Unlocker service/port to prevent remote exploitation
Use Windows Firewall to block inbound connections to IObit Unlocker
Disable Unlocker Service
WindowsTemporarily disable IObit Unlocker if not actively needed
sc stop "IObit Unlocker"
sc config "IObit Unlocker" start= disabled
🧯 If You Can't Patch
- Implement strict network segmentation to isolate systems running vulnerable version
- Monitor for crash events or unusual process termination of IObit Unlocker
🔍 How to Verify
Check if Vulnerable:
Check IObit Unlocker version in Help > About or program propertiesCheck Version:
wmic product where name="IObit Unlocker" get versionVerify Fix Applied:
Confirm version is newer than v1.3.0.11 and test functionality📡 Detection & Monitoring
Log Indicators:
- Application crash logs for IObit Unlocker
- Unexpected process termination events
Network Indicators:
- Unusual network traffic to IObit Unlocker port
- Multiple connection attempts to unlocker service
SIEM Query:
EventID=1000 OR EventID=1001 AND ProcessName="IObitUnlocker.exe"