CVE-2026-22320

MEDIUM

Stack-Based Buffer Overflow in TFTP File-Transfer Command Handling over CLI

Title source: cna

Description

A stack-based buffer overflow in the CLI's TFTP file‑transfer command handling allows a low-privileged attacker with Telnet/SSH access to trigger memory corruption by supplying unexpected or oversized filename input. Exploitation results in the corruption of the internal buffer, causing the CLI and web dashboard to become unavailable and leading to a denial of service.

References (1)

https://certvde.com/de/advisories/VDE-2025-104

Scores

CVSS v3 6.5

EPSS 0.0002

EPSS Percentile 4.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-121

Status published

Products (50)

Phoenix Contact/FL NAT 2008 0.0.0 - 3.53

Phoenix Contact/FL NAT 2208 0.0.0 - 3.53

Phoenix Contact/FL NAT 2304-2GC-2SFP 0.0.0 - 3.53

Phoenix Contact/FL SWITCH 2005 0.0.0 - 3.53

Phoenix Contact/FL SWITCH 2008 0.0.0 - 3.53

Phoenix Contact/FL SWITCH 2008F 0.0.0 - 3.53

Phoenix Contact/FL SWITCH 2016 0.0.0 - 3.53

Phoenix Contact/FL SWITCH 2105 0.0.0 - 3.53

Phoenix Contact/FL SWITCH 2108 0.0.0 - 3.53

Phoenix Contact/FL SWITCH 2116 0.0.0 - 3.53

... and 40 more

Published Mar 18, 2026

Tracked Since Mar 18, 2026