CVE-2025-26379
📋 TL;DR
This vulnerability involves the use of a weak pseudo-random number generator in PowerG systems, which could allow attackers to decrypt or inject encrypted PowerG packets. This affects Johnson Controls PowerG wireless security systems and potentially other systems using similar encryption implementations. Organizations using vulnerable PowerG devices for physical security are at risk.
💻 Affected Systems
- Johnson Controls PowerG wireless security systems
- Third-party systems using PowerG protocol
⚠️ 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 could decrypt all PowerG wireless communications, inject false alarm or disarm signals, bypass physical security systems, and gain unauthorized access to secured areas.
Likely Case
Skilled attackers could intercept and decrypt PowerG communications to monitor security system activity or potentially inject limited false signals.
If Mitigated
With proper network segmentation and monitoring, impact would be limited to potential information disclosure about security system activity.
🎯 Exploit Status
Exploitation requires proximity to wireless signals and cryptographic analysis capabilities; no public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific firmware versions
Vendor Advisory: https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories
Restart Required: Yes
Instructions:
1. Review Johnson Controls security advisory ICSA-25-350-02. 2. Identify affected PowerG devices. 3. Download updated firmware from Johnson Controls support portal. 4. Apply firmware updates following vendor instructions. 5. Verify successful update and functionality.
🔧 Temporary Workarounds
Network Segmentation
allIsolate PowerG systems from other networks to limit attack surface
Physical Security Controls
allRestrict physical access to areas where PowerG signals can be intercepted
🧯 If You Can't Patch
- Implement additional physical security layers (guards, barriers, surveillance)
- Deploy wireless intrusion detection systems to monitor for suspicious PowerG activity
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisory; devices using PowerG protocol with firmware prior to security updates are vulnerableCheck Version:
Varies by device - typically through device management interface or console; consult vendor documentationVerify Fix Applied:
Confirm firmware version matches or exceeds patched version specified in vendor advisory📡 Detection & Monitoring
Log Indicators:
- Unexpected device reboots
- Firmware version changes
- Authentication failures on PowerG devices
Network Indicators:
- Unusual PowerG wireless traffic patterns
- Suspicious RF signals in PowerG frequency range
SIEM Query:
Search for: (event_category:"firmware_update" OR event_category:"device_restart") AND device_type:"PowerG"