CVE-2026-2068
📋 TL;DR
This CVE describes a remote buffer overflow vulnerability in UTT 进取 520W firmware version 1.7.7-180627. Attackers can exploit this by sending specially crafted requests to the /goform/formSyslogConf endpoint, potentially allowing remote code execution. This affects all systems running the vulnerable firmware version.
💻 Affected Systems
- UTT 进取 520W
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote attackers could execute arbitrary code with system privileges, leading to complete device compromise, data theft, and use as a foothold for lateral movement.
Likely Case
Remote code execution leading to device takeover, installation of malware, or use in botnets.
If Mitigated
With proper network segmentation and access controls, impact could be limited to the affected device only.
🎯 Exploit Status
Public proof-of-concept code exists on GitHub, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available - vendor did not respond to disclosure
Restart Required: No
Instructions:
No official patch available. Consider replacing affected devices or implementing workarounds.
🔧 Temporary Workarounds
Network Access Control
linuxBlock access to the vulnerable endpoint using firewall rules
iptables -A INPUT -p tcp --dport 80 -m string --string "/goform/formSyslogConf" --algo bm -j DROP
iptables -A INPUT -p tcp --dport 443 -m string --string "/goform/formSyslogConf" --algo bm -j DROP
Disable Web Interface
allDisable the web management interface if not required
🧯 If You Can't Patch
- Segment affected devices in isolated network zones with strict firewall rules
- Implement network monitoring and intrusion detection for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface or CLI. If version is 1.7.7-180627, device is vulnerable.Check Version:
Check via web interface at http://device-ip/ or via SSH/Telnet if availableVerify Fix Applied:
No official fix available to verify. Workarounds can be tested by attempting to access /goform/formSyslogConf endpoint.📡 Detection & Monitoring
Log Indicators:
- Multiple requests to /goform/formSyslogConf with long ServerIp parameters
- Unusual process creation or system crashes
Network Indicators:
- HTTP POST requests to /goform/formSyslogConf with unusually long ServerIp values
- Traffic patterns suggesting buffer overflow attempts
SIEM Query:
source="firewall" AND (url="/goform/formSyslogConf" AND content_length>100) OR (event_type="buffer_overflow" AND device_model="UTT 520W")