CVE-2026-24431
📋 TL;DR
The Tenda W30E V2 router firmware exposes stored user account passwords in plaintext within the administrative web interface. Any authenticated user with access to the management pages can directly view credentials, potentially compromising all accounts on the device. This affects all users of the specified firmware versions.
💻 Affected Systems
- Shenzhen Tenda W30E V2
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full network compromise where an attacker gains administrative access, modifies router settings, intercepts all network traffic, and accesses all connected devices.
Likely Case
Credential theft leading to unauthorized access to router configuration, potential network reconnaissance, and lateral movement to connected systems.
If Mitigated
Limited to authenticated users only, preventing external attackers from exploiting without first compromising a valid account.
🎯 Exploit Status
Exploitation requires authenticated access to the administrative interface, but once authenticated, viewing credentials requires no special skills.
🛠️ 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 Admin Interface Access
allLimit administrative web interface access to trusted IP addresses only
Change All Passwords
allChange all user account passwords after implementing access controls
🧯 If You Can't Patch
- Isolate router management interface to dedicated VLAN with strict access controls
- Implement network segmentation to limit potential lateral movement from compromised router
🔍 How to Verify
Check if Vulnerable:
1. Log into router admin interface. 2. Navigate to user management/account pages. 3. Check if passwords are displayed in plaintext.Check Version:
Log into router admin interface and check System Status or About page for firmware versionVerify Fix Applied:
After firmware update, verify passwords are no longer displayed in plaintext in the admin interface.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by successful login
- Unusual admin interface access from new IP addresses
- Configuration changes from unauthorized users
Network Indicators:
- Unusual traffic patterns from router management IP
- External connections to router admin port (typically 80/443)
SIEM Query:
source_ip="router_ip" AND (event_type="authentication_success" OR url_path CONTAINS "/goform/")