CVE-2026-24432
📋 TL;DR
This CSRF vulnerability in Tenda W30E V2 routers allows attackers to trick authenticated administrators into unknowingly executing malicious requests. Attackers can change administrative passwords and modify router configuration settings. All users running affected firmware versions are vulnerable.
💻 Affected Systems
- Shenzhen Tenda W30E V2
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete router takeover with administrative password change, enabling attacker to reconfigure network settings, intercept traffic, or deploy additional attacks.
Likely Case
Unauthorized configuration changes leading to network disruption, DNS hijacking, or credential theft.
If Mitigated
Limited impact if CSRF protections are implemented or if administrative access is restricted.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into visiting a malicious page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check Tenda website for firmware updates
2. Download latest firmware for W30E V2
3. Access router admin interface
4. Navigate to firmware upgrade section
5. Upload and apply new firmware
6. Reboot router
🔧 Temporary Workarounds
Restrict Administrative Access
allLimit administrative interface access to trusted internal networks only
Configure firewall rules to block WAN access to router admin ports (typically 80/443)
Use Browser CSRF Protection
allEnable browser extensions that provide CSRF protection
Install extensions like CSRF Guard or NoScript
🧯 If You Can't Patch
- Implement network segmentation to isolate router management interface
- Use separate browser profiles for administrative tasks and general browsing
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router admin interface under System Status or Firmware Upgrade sectionCheck Version:
Login to router admin interface and navigate to System Status pageVerify Fix Applied:
Verify firmware version is newer than V16.01.0.19(5037) and test administrative endpoints for CSRF tokens📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by successful password change
- Configuration changes from unexpected IP addresses
Network Indicators:
- HTTP POST requests to administrative endpoints without Referer headers or CSRF tokens
SIEM Query:
source="router_logs" AND (event="password_change" OR event="config_change") AND NOT src_ip IN [trusted_admin_ips]