CVE-2026-22623
📋 TL;DR
This vulnerability allows authenticated users of certain HIKSEMI NAS products to execute arbitrary commands on the device by sending specially crafted messages. The issue stems from insufficient input validation on an interface, enabling remote code execution. Only authenticated users of affected HIKSEMI NAS devices are impacted.
💻 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
Full device compromise allowing attackers to install persistent malware, exfiltrate all stored data, pivot to internal networks, or render the device inoperable.
Likely Case
Data theft, ransomware deployment, or using the NAS as a foothold for lateral movement within the network.
If Mitigated
Limited impact if proper network segmentation, strong authentication, and monitoring are in place, though the vulnerability still exists.
🎯 Exploit Status
Exploitation requires authenticated access but appears straightforward once authentication is obtained. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific firmware versions
Vendor Advisory: https://www.hiksemitech.com/en/hiksemi/support/security-advisory.html
Restart Required: Yes
Instructions:
1. Visit the vendor security advisory page. 2. Identify your specific NAS model. 3. Download the latest firmware version. 4. Apply the firmware update through the NAS web interface. 5. Reboot the device after installation.
🔧 Temporary Workarounds
Network Segmentation
allIsolate NAS devices from critical networks and restrict access to authenticated users only
Access Control Restrictions
allLimit NAS administrative access to specific IP addresses and implement strong authentication
🧯 If You Can't Patch
- Disable remote administrative access and only allow local network management
- Implement strict firewall rules to limit which IP addresses can communicate with the NAS management interface
🔍 How to Verify
Check if Vulnerable:
Check your NAS firmware version against the vendor advisory. If running an affected version and the interface is accessible, assume vulnerability.Check Version:
Check through NAS web interface: System > Firmware or similar menuVerify Fix Applied:
After patching, verify the firmware version has been updated to a version not listed in the advisory as vulnerable.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful login and command execution
- Unexpected process creation or system modifications
Network Indicators:
- Unusual outbound connections from NAS device
- Suspicious payloads in HTTP requests to NAS management interface
- Anomalous traffic patterns to/from NAS administrative ports
SIEM Query:
source="nas_logs" AND (event="command_execution" OR event="system_modification") AND user!="authorized_admin"