CVE-2025-7468
📋 TL;DR
A critical buffer overflow vulnerability in Tenda FH1201 routers allows remote attackers to execute arbitrary code by sending specially crafted HTTP POST requests to the /goform/fromSafeUrlFilter endpoint. This affects users running firmware version 1.2.0.14 on Tenda FH1201 routers. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- Tenda FH1201
📦 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 lateral movement into connected networks.
If Mitigated
Denial of service or limited impact if network segmentation and strict firewall rules prevent exploitation.
🎯 Exploit Status
Public exploit disclosure available; remote exploitation requires no authentication.
🛠️ 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 admin interface. 4. Reboot router.
🔧 Temporary Workarounds
Block HTTP POST to vulnerable endpoint
linuxUse firewall rules to block access to /goform/fromSafeUrlFilter
iptables -A INPUT -p tcp --dport 80 -m string --string "/goform/fromSafeUrlFilter" --algo bm -j DROP
Disable remote administration
allTurn off remote management features in router settings
🧯 If You Can't Patch
- Segment router on isolated network segment
- Implement strict network ACLs to limit access to router management interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface; if version is 1.2.0.14, device is vulnerable.Check Version:
Check via router web interface at 192.168.0.1 or 192.168.1.1Verify Fix Applied:
Verify firmware version has been updated to a version later than 1.2.0.14.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /goform/fromSafeUrlFilter with unusual parameters
- Router crash/reboot logs
Network Indicators:
- Unusual HTTP traffic to router management port (typically 80)
- POST requests with long 'page' parameter values
SIEM Query:
source="router_logs" AND uri="/goform/fromSafeUrlFilter" AND method="POST"🔗 References
- https://candle-throne-f75.notion.site/Tenda-FH1201-fromSafeUrlFilter-229df0aa118580ceb3e4f54d22814c40
- https://vuldb.com/?ctiid.316120
- https://vuldb.com/?id.316120
- https://vuldb.com/?submit.610394
- https://www.tenda.com.cn/
- https://candle-throne-f75.notion.site/Tenda-FH1201-fromSafeUrlFilter-229df0aa118580ceb3e4f54d22814c40
