CVE-2025-32887
📋 TL;DR
This vulnerability in goTenna v1 devices allows attackers to intercept command channels containing next-hop information, which can be used to break frequency hopping security. This affects users of goTenna v1 devices running app version 5.5.3 and firmware version 0.25.5. The vulnerability enables disruption of secure communications in mesh networks.
💻 Affected Systems
- goTenna v1 devices
📦 What is this software?
Gotenna by Gotenna
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of frequency hopping security allowing persistent interception and disruption of all communications within the mesh network, potentially enabling man-in-the-middle attacks on sensitive data.
Likely Case
Temporary disruption of communications and potential interception of some messages within the mesh network, particularly in targeted attacks against specific devices.
If Mitigated
Limited impact with only occasional communication disruptions that can be detected and mitigated through network monitoring.
🎯 Exploit Status
Exploitation requires physical proximity to the target network and specialized equipment to intercept radio signals. The GitHub repository contains technical details about the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://gotenna.com
Restart Required: No
Instructions:
1. Check goTenna website for security updates
2. Update goTenna app through official app stores
3. Update firmware through the goTenna app interface
4. Verify both app and firmware versions after update
🔧 Temporary Workarounds
Physical Security Perimeter
allEstablish physical security zones to prevent unauthorized devices from getting within range of your mesh network
Network Segmentation
allSegment mesh networks and limit device-to-device communications to trusted nodes only
🧯 If You Can't Patch
- Implement strict physical access controls around mesh network deployment areas
- Monitor for unusual communication patterns or disruptions in the mesh network
🔍 How to Verify
Check if Vulnerable:
Check goTenna app version (Settings > About) and firmware version (in app device info). If app is 5.5.3 and firmware is 0.25.5, device is vulnerable.Check Version:
No command-line command; check versions through goTenna mobile app interfaceVerify Fix Applied:
Verify app version is greater than 5.5.3 and firmware version is greater than 0.25.5 after updates.📡 Detection & Monitoring
Log Indicators:
- Unexpected communication disruptions
- Frequent frequency hopping failures
- Unusual device pairing attempts
Network Indicators:
- Abnormal radio signal patterns
- Unexpected command channel activity
- Frequency hopping sequence anomalies
SIEM Query:
Not applicable - this is a radio frequency vulnerability not typically monitored by traditional SIEM systems