Exploited
8.8
CWE
78 77
Advisory Published
Updated

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

First published: Tue Feb 04 2025(Updated: )

**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.

Credit: security@zyxel.com.tw

Affected SoftwareAffected VersionHow to fix
Zyxel DSL CPE devices
Zyxel VMG4325-B10A firmware
All of
ZyXEL VMG1312-B10A
ZyXEL VMG1312-B10A firmware
All of
Zyxel VMG1312-B10B
Zyxel VMG1312-B10B Firmware
All of
Zyxel VMG1312-B10E
Zyxel VMG1312-B10E
All of
Zyxel Vmg3313-b10a Firmware
Zyxel VMG3312-B10A
All of
Zyxel Vmg3313-b10a Firmware
Zyxel Vmg3313-b10a
All of
Zyxel VMG3926-B10B
Zyxel VMG3926-B10B
All of
Zyxel VMG4325-B10A firmware
Zyxel VMG4325-B10A firmware
All of
ZyXEL VMG4380-B10A
ZyXEL VMG4380-B10A firmware
All of
ZyXEL VMG8324-B10A firmware
zyxel vmg8324-b10a
All of
ZyXEL VMG8924-B10A
ZyXEL VMG8924-B10A firmware
All of
ZyXEL SBG3300-N000
ZyXEL SBG3300-N000 firmware
All of
ZyXEL SBG3300-NB00
ZyXEL SBG3300-NB00 firmware
All of
ZyXEL SBG3500-N000
ZyXEL SBG3500-N000
All of
Zyxel Sbg3500-nb00 Firmware
Zyxel SBG3500-NB00

Remedy

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.

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2024-40890?

    CVE-2024-40890 is classified as a critical vulnerability due to its potential to allow authenticated attackers to execute OS commands.

  • How do I fix CVE-2024-40890?

    To mitigate CVE-2024-40890, users should upgrade to the latest firmware version provided by Zyxel, if available.

  • Who is affected by CVE-2024-40890?

    CVE-2024-40890 affects the Zyxel VMG4325-B10A device running firmware version 1.00(AAFR.4)C0_20170615.

  • Can CVE-2024-40890 be exploited remotely?

    CVE-2024-40890 requires authentication, so exploitation must be carried out by an attacker with valid user credentials.

  • Is there a known public exploit for CVE-2024-40890?

    Yes, there are reports indicating that attackers are actively exploiting CVE-2024-40890 in the wild.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203