CVE-2026-22625
📋 TL;DR
This vulnerability in HIKSEMI NAS products allows attackers to access sensitive system files through improper filename handling. It affects users of certain HIKSEMI NAS devices, potentially exposing configuration files, logs, or other protected data.
💻 Affected Systems
- HIKSEMI NAS products
⚠️ 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 system compromise through exposure of authentication files, configuration secrets, or system logs leading to privilege escalation or lateral movement.
Likely Case
Exposure of sensitive configuration files containing network settings, user information, or system logs that could aid further attacks.
If Mitigated
Limited exposure of non-critical system files with minimal impact on overall system security.
🎯 Exploit Status
Path traversal or directory listing vulnerabilities typically have low complexity. No public exploit code identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific fixed versions
Vendor Advisory: https://www.hiksemitech.com/en/hiksemi/support/security-advisory.html
Restart Required: Yes
Instructions:
1. Visit the vendor advisory URL. 2. Identify affected product models. 3. Download and apply the latest firmware update. 4. Restart the NAS device.
🔧 Temporary Workarounds
Restrict network access
allLimit NAS access to trusted networks only
Disable unnecessary services
allTurn off any file sharing or web services not required
🧯 If You Can't Patch
- Isolate the NAS device on a separate VLAN with strict firewall rules
- Implement network monitoring for unusual file access patterns
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisory. Attempt to access system files through web interface if testing in controlled environment.Check Version:
Check through NAS web interface: System > Information > Firmware VersionVerify Fix Applied:
Verify firmware version matches or exceeds patched version from advisory. Test that system files are no longer accessible.📡 Detection & Monitoring
Log Indicators:
- Unusual file access patterns
- Multiple failed attempts to access system directories
- Requests for known system file paths
Network Indicators:
- HTTP requests for system file paths
- Unusual traffic to NAS web interface
SIEM Query:
source="nas_logs" AND (path="*etc*" OR path="*config*" OR path="*system*") AND response_code=200