CVE-2026-1460

HIGH

Zyxel DX3301-T0 & EX3301-T0 <= 5.50(ABVY.7.1)C0 Authenticated OS Command Injection via DHCP

Title source: llm

Description

A post-authentication command injection vulnerability in the “DomainName” parameter of the DHCP configuration file in Zyxel DX3301-T0 and EX3301-T0 firmware versions through 5.50(ABVY.7.1)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-04-28-2026

Scores

CVSS v3 7.2

EPSS 0.0116

EPSS Percentile 62.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-78

Status published

Products (2)

Zyxel/DX3301-T0 firmware <= 5.50(ABVY.7.1)C0

Zyxel/EX3301-T0 firmware <= 5.50(ABVY.7.1)C0

Published Apr 28, 2026

Tracked Since Apr 28, 2026