CVE-2026-22626
📋 TL;DR
Authenticated users of certain HIKSEMI NAS products can cause abnormal device behavior by sending crafted messages to an interface with insufficient input validation. This affects organizations using vulnerable HIKSEMI NAS devices with authenticated user access.
💻 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
Device becomes unresponsive or crashes, causing denial of service and potential data unavailability.
Likely Case
Temporary service disruption or performance degradation affecting NAS operations.
If Mitigated
Minimal impact with proper network segmentation and access controls limiting authenticated user exposure.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of vulnerable interface.
🛠️ 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. Check vendor advisory for affected products
2. Download latest firmware from vendor portal
3. Backup NAS data
4. Apply firmware update through web interface
5. Verify update completion and functionality
🔧 Temporary Workarounds
Restrict authenticated user access
allLimit NAS interface access to only necessary authenticated users
Network segmentation
allIsolate NAS devices on separate network segments
🧯 If You Can't Patch
- Implement strict access controls limiting authenticated users
- Monitor NAS device behavior and logs for abnormal activity
🔍 How to Verify
Check if Vulnerable:
Check device model and firmware version against vendor advisoryCheck Version:
Check web interface system information or vendor-specific CLIVerify Fix Applied:
Confirm firmware version matches or exceeds patched version in advisory📡 Detection & Monitoring
Log Indicators:
- Unusual authentication patterns
- Interface error messages
- Service disruption logs
Network Indicators:
- Abnormal traffic patterns to NAS management interfaces
SIEM Query:
Search for multiple failed authentication attempts followed by service disruption alerts