CVE-2024-41936 Vonets CVE debrief

Who should care

Organizations deploying Vonets WiFi bridge devices in industrial, enterprise, or operational technology environments should prioritize assessment. Security teams responsible for network infrastructure, OT/ICS security practitioners, and managed service providers supporting distributed wireless deployments are most affected. The unauthenticated nature of this vulnerability makes it particularly dangerous for internet-exposed or improperly segmented devices.

Technical summary

The vulnerability is a directory traversal flaw in the web management interface of Vonets Industrial WiFi Bridge products. An unauthenticated remote attacker can exploit path traversal sequences to access files outside the intended directory scope, including sensitive system files. This file read capability can be leveraged to bypass authentication mechanisms. The attack requires no privileges or user interaction and can be executed remotely over the network. The affected firmware version 3.3.23.6.9 and prior are vulnerable across the entire product line of bridge relays and repeaters.

Defensive priority

HIGH

Recommended defensive actions

• Contact Vonets support directly for security updates or mitigation guidance, as the vendor has not coordinated with CISA
• Segment affected devices from untrusted networks and the internet where possible
• Monitor for unauthorized access attempts to Vonets device management interfaces
• Apply network-level access controls to restrict administrative interface access to authorized hosts only
• Consider replacing affected devices if vendor support is unavailable and security patches cannot be obtained

Evidence notes

The source advisory identifies 16 affected product entries spanning 14 unique product models, all running firmware version 3.3.23.6.9 or earlier. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) confirms network-based exploitation without authentication requirements.

Official resources