CVE-2026-1459
Received Received - Intake
Post-Auth Command Injection in Zyxel VMG3625-T50B Firmware

Publication date: 2026-02-24

Last updated on: 2026-02-25

Assigner: Zyxel Corporation

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.
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Meta Information
Published
2026-02-24
Last Modified
2026-02-25
Generated
2026-06-16
AI Q&A
2026-02-24
EPSS Evaluated
2026-06-15
NVD
CVE-2026-1459
EUVD
EUVD-2026-7399
Affected Vendors & Products
Showing 6 associated CPEs
Vendor Product Version / Range
zyxel vmg8623-t50b_firmware to 5.50(abpm.9.7 (inc)
zyxel dx5401-b1_firmware to 5.17(abyo.7.1 (inc)
zyxel emg3525-t50b_firmware to 5.50(abpm.9.7 (inc)
zyxel emg5523-t50b_firmware to 5.50(abpm.9.7 (inc)
zyxel vmg3625-t50b_firmware to 5.50(abpm.9.7 (inc)
zyxel vmg3625-t50c_firmware to 5.50(abpm.9.7 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

This vulnerability is a post-authentication command injection issue found in the TR-369 certificate download CGI program of the Zyxel VMG3625-T50B device firmware versions up to 5.50(ABPM.9.7)C0.

An attacker who is already authenticated with administrator privileges can exploit this flaw to execute arbitrary operating system commands on the affected device.

Impact Analysis

If exploited, this vulnerability allows an attacker with admin access to run OS commands on the device, potentially leading to full control over the device.

  • Compromise of device integrity and availability.
  • Unauthorized access to sensitive data or network resources.
  • Potential disruption of network services relying on the device.
Compliance Impact

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