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Vulnerability record · CVE-2026-1459 · published 24 February 2026

CVE-2026-1459: Zyxel vmg3625-t50c firmware os command injection vulnerability

Zyxel · Vmg3625 T50c Firmware

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.

7.2 CVSS 3.1 High EPSS 0.92% · top 41.4% CWE-78 · OS command injection
7.2CVSS 3.1 base score
0.92%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

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

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-com Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-1459), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.