CVE-2026-22613
📋 TL;DR
CVE-2026-22613 is an insecure server identity check vulnerability in Eaton Network M3 firmware upgrade mechanism via command shell. This allows attackers to perform man-in-the-middle attacks and potentially deliver malicious firmware updates. Organizations using affected Eaton Network M3 devices are impacted.
💻 Affected Systems
- Eaton Network M3
⚠️ 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
Attacker delivers malicious firmware that compromises device integrity, enables persistent backdoor access, and potentially spreads to connected systems.
Likely Case
Attacker intercepts firmware updates to install modified firmware with limited malicious functionality or disrupt device operations.
If Mitigated
Attack prevented through proper network segmentation, certificate validation, and monitoring of firmware update processes.
🎯 Exploit Status
Requires man-in-the-middle position during firmware upgrade process via command shell.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Latest firmware version available on Eaton download center
Vendor Advisory: https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/etn-va-2025-1002.pdf
Restart Required: Yes
Instructions:
1. Download latest firmware from Eaton download center. 2. Backup current configuration. 3. Apply firmware update via secure management interface. 4. Verify successful update and restore configuration if needed.
🔧 Temporary Workarounds
Disable command shell firmware upgrades
allPrevent firmware upgrades via command shell interface
Configuration specific to Eaton Network M3 - consult device documentation
Use secure management interface only
allRestrict firmware upgrades to secure management interfaces with proper authentication
Configure access controls to disable command shell firmware upgrade capability
🧯 If You Can't Patch
- Segment network to isolate Eaton devices from untrusted networks
- Monitor and alert on firmware update attempts via command shell
🔍 How to Verify
Check if Vulnerable:
Check firmware version against Eaton's security bulletin. If using command shell firmware upgrade functionality, assume vulnerable if not on latest version.Check Version:
Device-specific command via management interface (consult Eaton documentation)Verify Fix Applied:
Verify firmware version matches latest version from Eaton download center and test firmware upgrade process with proper certificate validation.📡 Detection & Monitoring
Log Indicators:
- Unexpected firmware upgrade attempts
- Command shell firmware upgrade activity
- Certificate validation failures during updates
Network Indicators:
- Unencrypted firmware transfer traffic
- Firmware downloads from unexpected sources
- MITM patterns in update traffic
SIEM Query:
source="eaton-m3" AND (event_type="firmware_upgrade" OR command="upgrade_firmware")