CVE-2026-1670
📋 TL;DR
This vulnerability allows unauthenticated attackers to remotely change the password recovery email address via an exposed API endpoint. This affects Honeywell industrial control systems, potentially enabling account takeover and unauthorized access to critical infrastructure systems.
💻 Affected Systems
- Honeywell industrial control systems
⚠️ 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
Complete system compromise allowing attackers to reset administrator passwords, gain full control of industrial systems, and potentially disrupt critical infrastructure operations.
Likely Case
Unauthorized access to system accounts leading to data theft, configuration changes, or disruption of industrial processes.
If Mitigated
Limited impact with proper network segmentation and authentication controls preventing external access to vulnerable endpoints.
🎯 Exploit Status
The vulnerability requires no authentication and involves simple API calls, making exploitation straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Consult Honeywell advisory for specific patched versions
Vendor Advisory: https://www.honeywell.com/us/en/contact/support
Restart Required: Yes
Instructions:
1. Contact Honeywell support for specific patch information
2. Apply vendor-provided patches or updates
3. Restart affected systems as required
4. Verify the fix by testing the vulnerable endpoint
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected systems from untrusted networks and restrict access to API endpoints
Configure firewall rules to block external access to vulnerable API endpoints
Implement network segmentation to isolate ICS systems
Authentication Enforcement
allImplement authentication requirements for all API endpoints
Configure authentication middleware for API endpoints
Enable authentication on all system interfaces
🧯 If You Can't Patch
- Implement strict network access controls to prevent external access to vulnerable endpoints
- Monitor for suspicious API calls to password reset functionality and implement alerting
🔍 How to Verify
Check if Vulnerable:
Test if unauthenticated API calls can modify password recovery email addresses; consult vendor-specific testing proceduresCheck Version:
Check system version through vendor-specific administration interface or command line toolsVerify Fix Applied:
Verify that authentication is now required for password recovery email modification endpoints and test with invalid credentials📡 Detection & Monitoring
Log Indicators:
- Unauthenticated API calls to password reset endpoints
- Multiple failed authentication attempts followed by password reset requests
- Changes to user account recovery settings from unexpected sources
Network Indicators:
- Unusual API traffic patterns to authentication endpoints
- External IP addresses accessing internal password reset functionality
SIEM Query:
source="api_logs" AND (endpoint="password_reset" OR endpoint="recovery_email") AND auth_status="unauthenticated"