CVE-2025-8060
📋 TL;DR
A critical stack-based buffer overflow vulnerability in Tenda AC23 routers allows remote attackers to execute arbitrary code by manipulating the deviceList parameter in the httpd component. This affects Tenda AC23 routers running firmware version 16.03.07.52. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- Tenda AC23
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full router compromise, credential theft, network pivoting, and persistent backdoor installation.
Likely Case
Router takeover enabling traffic interception, DNS manipulation, and network disruption.
If Mitigated
Limited impact if isolated from critical networks and with proper network segmentation.
🎯 Exploit Status
Public exploit details are available, making exploitation straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.tenda.com.cn/
Restart Required: Yes
Instructions:
1. Check Tenda website for firmware updates. 2. Download latest firmware. 3. Upload via router web interface. 4. Reboot router.
🔧 Temporary Workarounds
Disable Remote Management
allDisable web management interface from WAN/Internet access
Network Segmentation
allIsolate router management interface to separate VLAN
🧯 If You Can't Patch
- Replace affected router with different model/brand
- Implement strict firewall rules blocking all external access to router management interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via web interface at 192.168.0.1 or 192.168.1.1Check Version:
curl -s http://router-ip/login/Auth | grep version or check web interfaceVerify Fix Applied:
Verify firmware version is newer than 16.03.07.52📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/setMacFilterCfg
- Router crash/reboot logs
- Unusual outbound connections from router
Network Indicators:
- Exploit traffic patterns to router management interface
- Unusual payloads in HTTP POST to deviceList parameter
SIEM Query:
source="router" AND (url="/goform/setMacFilterCfg" OR method="POST" AND uri CONTAINS "setMacFilterCfg")🔗 References
- https://github.com/Thir0th/Thir0th-CVE/blob/main/Tenda%20AC23_V16.03.07.52_has_a_stack_overflow.md
- https://vuldb.com/?ctiid.317317
- https://vuldb.com/?id.317317
- https://vuldb.com/?submit.619604
- https://www.tenda.com.cn/
- https://github.com/Thir0th/Thir0th-CVE/blob/main/Tenda%20AC23_V16.03.07.52_has_a_stack_overflow.md
