CVE-2026-1459

HIGH

Zyxel VMG3625-T50B <5.50(ABPM.9.7)C0 - Command Injection

Title source: llm

Exploitation Summary

EIP tracks 2 public exploits for CVE-2026-1459. PoCs published by adminlove520, Toouch67.

AI-analyzed exploit summary The repository contains a functional Python exploit for CVE-2026-1459, which leverages a command injection vulnerability in the TR369Certificates endpoint of Zyxel VMG3625-T50B routers to change the root SSH password. The exploit requires valid admin credentials and uses RSA/AES encryption for authentication.

Description

A post-authentication command injection vulnerability in the TR-369 certificate download CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.7)C0 could allow an authenticated attacker with administrator privileges to execute operating system (OS) commands on an affected device.

Exploits (2)

github WORKING POC 4 stars

by adminlove520 · pythonpoc

https://github.com/adminlove520/CVE-Poc_All_in_One/tree/main/2026/CVE-2026-1459

View Code ZIP pw:eip

The repository contains a functional Python exploit for CVE-2026-1459, which leverages a command injection vulnerability in the TR369Certificates endpoint of Zyxel VMG3625-T50B routers to change the root SSH password. The exploit requires valid admin credentials and uses RSA/AES encryption for authentication.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Zyxel VMG3625-T50B (firmware V5.50(ABPM.9.7)C0 or earlier)

Auth required

Prerequisites: valid admin credentials · network access to the router

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1059 - Command and Scripting Interpreter T1203 - Exploitation for Client Execution

devstral-2 · analyzed May 14, 2026 Full analysis →

nomisec WORKING POC

by Toouch67 · poc

https://github.com/Toouch67/CVE-2026-1459-POC

View Code ZIP pw:eip

This repository contains a functional Python exploit for CVE-2026-1459, which leverages a command injection vulnerability in the TR369Certificates endpoint of Zyxel VMG3625-T50B routers. The exploit authenticates with valid credentials, then injects a payload to change the root SSH password.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Zyxel VMG3625-T50B firmware V5.50(ABPM.9.7)C0 or earlier

Auth required

Prerequisites: valid admin credentials · network access to the router

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1059 - Command and Scripting Interpreter T1203 - Exploitation for Client Execution

devstral-2 · analyzed Apr 24, 2026 Full analysis →

References (1)

Core 1

Core References

Various Sources vendor-advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026

Scores

CVSS v3 7.2

EPSS 0.0003

EPSS Percentile 10.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-78

Status published

Products (6)

zyxel/dx5401-b1_firmware < 5.17\(abyo.7.1\)c0

zyxel/emg3525-t50b_firmware < 5.50\(abpm.9.7\)c0

zyxel/emg5523-t50b_firmware < 5.50\(abpm.9.7\)c0

zyxel/vmg3625-t50b_firmware < 5.50\(abpm.9.7\)c0

zyxel/vmg3625-t50c_firmware < 5.50\(abpm.9.7\)c0

zyxel/vmg8623-t50b_firmware < 5.50\(abpm.9.7\)c0

Published Feb 24, 2026

Tracked Since Feb 24, 2026