CVE-2025-26339
📋 TL;DR
This vulnerability allows unauthenticated remote attackers to send crafted HTTP requests to Q-Free MaxTime traffic management systems, potentially compromising device confidentiality, integrity, and availability. All organizations using Q-Free MaxTime version 2.11.0 or earlier are affected. The vulnerability stems from missing authentication in the handleRoute.lua component.
💻 Affected Systems
- Q-Free MaxTime
📦 What is this software?
Maxtime by Q Free
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to manipulate traffic signals, disrupt transportation systems, exfiltrate sensitive data, or render devices inoperable.
Likely Case
Unauthorized access to system functions, potential data theft, and disruption of traffic management operations.
If Mitigated
Limited impact if systems are behind firewalls with strict network segmentation and access controls.
🎯 Exploit Status
The vulnerability allows multiple unspecified attack vectors via crafted HTTP requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version newer than 2.11.0
Vendor Advisory: https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-26339
Restart Required: Yes
Instructions:
1. Contact Q-Free for patched version. 2. Backup configuration. 3. Apply update. 4. Restart system. 5. Verify functionality.
🔧 Temporary Workarounds
Network Segmentation
allIsolate MaxTime systems from untrusted networks using firewalls.
Access Control Lists
linuxRestrict HTTP access to MaxTime systems to authorized IP addresses only.
iptables -A INPUT -p tcp --dport 80 -s TRUSTED_IP -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to MaxTime systems
- Deploy web application firewalls (WAF) to filter malicious HTTP requests
🔍 How to Verify
Check if Vulnerable:
Check MaxTime version via web interface or system logs. If version ≤2.11.0, system is vulnerable.Check Version:
Check web interface or contact Q-Free for version verification method.Verify Fix Applied:
Verify version is >2.11.0 and test authentication requirements for HTTP endpoints.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to handleRoute.lua
- Authentication bypass attempts
- Unexpected system configuration changes
Network Indicators:
- HTTP requests to MaxTime systems from unauthorized sources
- Unusual traffic patterns to traffic management systems
SIEM Query:
source="maxtime" AND (uri="*handleRoute*" OR status="401" OR status="403")