CVE-2026-2067
📋 TL;DR
A buffer overflow vulnerability in the UTT 进取 520W router firmware version 1.7.7-180627 allows remote attackers to execute arbitrary code by manipulating the 'year1' parameter in the formTimeGroupConfig function. This affects all systems running the vulnerable firmware version. The vulnerability is remotely exploitable without authentication.
💻 Affected Systems
- UTT 进取 520W router
⚠️ 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
Remote code execution leading to complete system compromise, data theft, and persistent backdoor installation.
Likely Case
Remote code execution allowing attackers to gain control of the router, intercept network traffic, or launch attacks against internal networks.
If Mitigated
Denial of service or system instability if exploit attempts are blocked by network controls.
🎯 Exploit Status
Proof of concept code is publicly available on GitHub, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: Yes
Instructions:
No official patch available. Contact vendor for updated firmware or replace affected devices.
🔧 Temporary Workarounds
Network segmentation and isolation
allIsolate affected routers in separate network segments to limit potential damage.
Disable remote administration
allDisable web administration interface from external networks.
🧯 If You Can't Patch
- Replace affected routers with different models or vendors
- Implement strict network access controls to limit exposure to the vulnerable interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via web interface or SSH. If version is 1.7.7-180627, the device is vulnerable.Check Version:
Check web interface at http://[router-ip]/ or use SSH if enabledVerify Fix Applied:
Verify firmware version has been updated to a version later than 1.7.7-180627.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/formTimeGroupConfig with malformed year1 parameter
- System crash or reboot logs
Network Indicators:
- HTTP requests to router with suspicious payloads in year1 parameter
- Unusual outbound connections from router
SIEM Query:
source="router-logs" AND uri="/goform/formTimeGroupConfig" AND (year1="*[long-string]*" OR year1="*[special-chars]*")