---
id: "CVE-2026-95377"
page: "https://infrastack.ai/live/CVE-2026-95377"
kind: "vulnerability"
aliases: ["CVE-2026-95377"]
title: "Zenitel EdgeAudioClient: rogue DHCP server runs commands as root on devices"
severity: "critical"
cvss: 9.4
epss: null
exploited: false
status: "open"
category: "vendor"
products: []
ecosystems: []
tags: ["edgeaudioclient", "vendor", "vsff6", "vsff8", "vsff8mn", "vsff8mp", "vsft", "zenitel"]
not_affected_if: ["patched-version", "static-tftp-config"]
published_at: "2026-11-13T16:19:37+00:00"
first_seen_at: "2026-11-13T16:47:35+00:00"
updated_at: "2026-11-13T16:48:12+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95377", "first_seen_at": "2026-11-13T16:47:35+00:00"}]
exploit_sources: []
---

# Zenitel EdgeAudioClient: rogue DHCP server runs commands as root on devices

Link for people: https://infrastack.ai/live/CVE-2026-95377 (this .md is for agents)

Zenitel EdgeAudioClient devices pass the TFTP server name from DHCP option 66 to a shell without sanitizing it. An attacker on the same network segment running a rogue DHCP server can execute arbitrary commands as root without logging in.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the EdgeAudioClient firmware or software version on VSFF6, VSFF8, VSFF8MP, VSFF8MN and VSFT devices against the fixed versions below.
- Check whether devices use DHCP (the default) to obtain their TFTP server name.

## Fix

- EdgeAudioClient 9.x: move to `9.6.3.0` or later.
- EdgeAudioClient 10.x: move to `10.1.3.0` or later.

## Timeline

- 2026-11-13T16:47:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-95377

## From the sources

OS command injection in the TFTP provisioning module of Zenitel EdgeAudioClient before 9.6.3.0, and 10.x before 10.1.3.0, on VSFF6, VSFF8, VSFF8MP, VSFF8MN, and VSFT devices allows unauthenticated adjacent attackers to execute arbitrary commands as root via a crafted DHCP option 66 (TFTP Server Name) value supplied by a rogue DHCP server on the same network segment. The DHCP-supplied value is passed to a shell without sanitization. Devices using DHCP, the default configuration, are affected on every boot and lease renewal.



The same injection is also reachable via the config_update_tftp_server and sw_update_tftp_server configuration fields by an attacker able to modify the device configuration.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_