CVE-2026-1459

Name: CVE-2026-1459
Creator: NVD / NIST
Published: 2026-02-24T03:16:00.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2026-1459 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. 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.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

0.90%

55.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Zyxel	Vmg3625-T50c Firmware	<= 5.50\(abpm.9.7\)c0
Zyxel	Vmg3625-T50b Firmware	<= 5.50\(abpm.9.7\)c0
Zyxel	Emg5523-T50b Firmware	<= 5.50\(abpm.9.7\)c0
Zyxel	Emg3525-T50b Firmware	<= 5.50\(abpm.9.7\)c0
Zyxel	Dx5401-B1 Firmware	<= 5.17\(abyo.7.1\)c0
Zyxel	Vmg8623-T50b Firmware	<= 5.50\(abpm.9.7\)c0

References

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-02-24-2026Vendor Advisory

Timeline

Published: Feb 24, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-1459?

How severe is CVE-2026-1459?

CVE-2026-1459 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2026-1459?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-1459?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST