CVE-2025-26709
📋 TL;DR
This vulnerability allows unauthorized attackers to access sensitive information through ZTE F50's web interface due to improper permission controls. It affects ZTE F50 devices with vulnerable firmware versions. Attackers can exploit this without authentication to potentially obtain confidential data.
💻 Affected Systems
- ZTE F50
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain administrative credentials, network configurations, or sensitive user data, leading to complete device compromise or network infiltration.
Likely Case
Attackers harvest device information, configuration details, or limited user data that could facilitate further attacks.
If Mitigated
Information disclosure limited to non-critical data with proper network segmentation and access controls.
🎯 Exploit Status
Exploitation requires only web access to vulnerable interface; no authentication needed. Attackers can use standard HTTP tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check ZTE advisory for specific patched firmware version
Vendor Advisory: https://support.zte.com.cn/zte-iccp-isupport-webui/bulletin/detail/1288700446535356789
Restart Required: Yes
Instructions:
1. Access ZTE support portal. 2. Download latest firmware for F50. 3. Upload firmware via device management interface. 4. Apply update and restart device.
🔧 Temporary Workarounds
Disable Web Interface
ZTE F50Temporarily disable the vulnerable web interface if not required for operations
Check device documentation for web interface disable commands
Network Segmentation
networkRestrict access to F50 web interface using firewall rules
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the F50 web interface
- Monitor web interface access logs for unauthorized attempts and implement intrusion detection
🔍 How to Verify
Check if Vulnerable:
Attempt to access sensitive web endpoints without authentication; check if information is disclosedCheck Version:
Check device web interface or CLI for firmware version displayVerify Fix Applied:
Verify firmware version matches patched version from ZTE advisory; test that unauthorized access to sensitive endpoints is blocked📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to web interface
- Multiple failed authentication attempts followed by successful information requests
Network Indicators:
- Unusual HTTP requests to F50 web endpoints from unauthorized IPs
- Information disclosure in HTTP responses
SIEM Query:
source="zte_f50" AND (http_status=200 AND http_method=GET AND NOT user_agent="authorized_client")