High severity7.2NVD Advisory· Published Feb 24, 2026· Updated Jun 17, 2026

CVE-2026-1459

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Zyxel/Dx5401 B1 Firmware
cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:*
Range: <=5.17\(abyo.7.1\)c0
Zyxel/Emg3525 T50b Firmware
cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:*
Range: <=5.50\(abpm.9.7\)c0
Zyxel/Emg5523 T50b Firmware
cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:*
Range: <=5.50\(abpm.9.7\)c0
Zyxel/Vmg3625 T50b Firmware
cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:*
Range: <=5.50\(abpm.9.7\)c0
Zyxel/Vmg3625 T50c Firmware
cpe:2.3:o:zyxel:vmg3625-t50c_firmware:*:*:*:*:*:*:*:*
Range: <=5.50\(abpm.9.7\)c0
Zyxel/Vmg8623 T50b Firmware
cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:*
Range: <=5.50\(abpm.9.7\)c0
Zyxel/VMG3625-T50Bllm-fuzzy2 versions
<=5.50(ABPM.9.7)C0+ 1 more
- (no CPE)range: <=5.50(ABPM.9.7)C0
- (no CPE)range: <= 5.50(ABPM.9.7)C0

Patches

Vulnerability mechanics

References

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-02-24-2026nvdVendor Advisory

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