# CVE-2024-40890: Zyxel DSL CPE OS Command Injection Vulnerability

> CVE-2024-40890: Zyxel DSL CPE OS Command Injection Vulnerability. CVSS 8.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-40890
Last updated: 2026-06-17T07:46:48Z

- Published: 2025-02-04 09:55 UTC · Updated: 2026-06-17 07:46 UTC · Assigner: Zyxel
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 20.7%, 98th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-02-11, federal due date 2025-03-04, ransomware use: Unknown
- CWE: CWE-78

## 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.

## CISA required action

The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization if a current mitigation is unavailable.

## Affected vendors and products

- Zyxel: VMG4325-B10A firmware

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-40890)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-40890)
- [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](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)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-40890 · Markdown: https://rewindex.com/cve/CVE-2024-40890.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-40890 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:12:44.775Z