CVE-2026-1459: OS Command Injection

Published Feb 24, 2026
·
Updated

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.

Affected Software

13 affected components
Zyxel VMG3625-T50B<=5.50(ABPM.9.7)C0
All of the following
Zyxel Vmg8623-t50b Firmware<=5.50\(abpm.9.7\)c0
Zyxel Vmg8623-t50b
All of the following
Zyxel Dx5401-b1 Firmware<=5.17\(abyo.7.1\)c0
Zyxel Dx5401-b1
All of the following
Zyxel Emg3525-t50b Firmware<=5.50\(abpm.9.7\)c0
Zyxel Emg3525-t50b
All of the following
Zyxel Emg5523-t50b Firmware<=5.50\(abpm.9.7\)c0
Zyxel Emg5523-t50b
All of the following
Zyxel VMG3625-T50B firmware<=5.50\(abpm.9.7\)c0
Zyxel VMG3625-T50B
All of the following
Zyxel Vmg3625-t50c Firmware<=5.50\(abpm.9.7\)c0
Zyxel Vmg3625-t50c

Event History

Feb 24, 2026
CVE Published
via MITRE·02:48 AM
Data Sourced
via MITRE·02:48 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:16 AM
DescriptionSeverityWeaknessAffected Software
Feb 25, 2026
News Published
via BleepingComputer·12:53 PM
News Published
via BleepingComputer·12:53 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-1459?

The severity of CVE-2026-1459 is critical, as it allows authenticated attackers with administrator privileges to execute OS commands.

2

How do I fix CVE-2026-1459?

To fix CVE-2026-1459, upgrade the Zyxel VMG3625-T50B firmware to a version higher than 5.50(ABPM.9.7)C0.

3

What systems are affected by CVE-2026-1459?

CVE-2026-1459 affects Zyxel VMG3625-T50B firmware versions up to and including 5.50(ABPM.9.7)C0.

4

Who can exploit CVE-2026-1459?

CVE-2026-1459 can be exploited by authenticated attackers with administrator privileges on the affected devices.

5

What type of vulnerability is CVE-2026-1459?

CVE-2026-1459 is a post-authentication command injection vulnerability.

Company

Resources

Contact

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