CVE-2025-14693
📋 TL;DR
This vulnerability in Ugreen DH2100+ network-attached storage devices allows attackers with physical access to exploit symlink following in the USB Handler component. Attackers can potentially access sensitive files or escalate privileges by manipulating symbolic links. Only users of Ugreen DH2100+ devices up to version 5.3.0 are affected.
💻 Affected Systems
- Ugreen DH2100+
⚠️ 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 device compromise allowing data theft, privilege escalation, or persistent backdoor installation
Likely Case
Unauthorized file access leading to information disclosure or limited privilege escalation
If Mitigated
Minimal impact if physical access controls prevent unauthorized device access
🎯 Exploit Status
Exploit details have been publicly disclosed. Attack requires physical USB device access but no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 5.3.0
Vendor Advisory: Not provided in references
Restart Required: Yes
Instructions:
1. Access Ugreen DH2100+ web interface
2. Navigate to System Settings > Firmware Update
3. Check for and install latest firmware (version >5.3.0)
4. Reboot device after update completes
🔧 Temporary Workarounds
Physical Access Restriction
allPrevent unauthorized physical access to USB ports
USB Port Disablement
linuxDisable USB functionality if not required
🧯 If You Can't Patch
- Restrict physical access to device in secure location
- Disconnect USB devices and monitor for unauthorized connections
🔍 How to Verify
Check if Vulnerable:
Check firmware version in web interface: System Settings > Firmware InformationCheck Version:
Not applicable - use web interfaceVerify Fix Applied:
Confirm firmware version is greater than 5.3.0 in System Settings📡 Detection & Monitoring
Log Indicators:
- Unusual USB device connections
- File access patterns suggesting symlink traversal
Network Indicators:
- None - local physical attack only
SIEM Query:
Not applicable - requires physical access detection