CVE-2024-40890

8.8 HIGH CISA KEV - Actively Exploited

Published: February 04, 2025 Modified: October 27, 2025

Description

**UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the CGI program of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device by sending a crafted HTTP POST request.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-insecure-default-credentials-vulnerabilities-in-certain-legacy-dsl-cpe-02-04-2025

Source: security@zyxel.com.tw

Vendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40890

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

2 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.8 / 10.0

EPSS (Exploit Probability)

19.0%

95th percentile

Exploitation Status

Actively Exploited

Remediation due: 2025-03-04

Weaknesses (CWE)

CWE-78

Affected Vendors

zyxel

Related CVEs

CVE-2025-52691 10.0

CVE-2025-15168 7.3

CVE-2025-15167 7.3

CVE-2025-15166 7.3

CVE-2025-15165 7.3