CVE-2026-6952

HIGH

Zyxel AX7501-B1 Firmware - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Title source: rule

Description

A post-authentication command injection vulnerability in the "LogServer" field of the syslog component in Zyxel AX7501-B1 firmware versions through 5.17(ABPC.7.2)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-post-authentication-command-injection-vulnerability-in-certain-dsl-ethernet-cpe-fiber-onts-and-wireless-extenders-07-21-2026

Scores

CVSS v3 7.2

EPSS 0.0095

EPSS Percentile 57.7%

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 (1)

Zyxel/AX7501-B1 firmware <= 5.17(ABPC.7.2)C0

Published Jul 21, 2026

Tracked Since Jul 21, 2026