CVE-2024-40890

Name: CVE-2024-40890
Creator: NVD / NIST
Published: 2025-02-04T10:15:08.717+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 19.31%

Last modified Jun 17, 2026

CVE-2024-40890 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. **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 has confirmed active exploitation in the wild. EPSS estimates a 19.31% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

19.31%

97.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Mar 4, 2025.

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Zyxel	Vmg1312-B10a Firmware	All versions
Zyxel	Vmg1312-B10b Firmware	All versions
Zyxel	Vmg1312-B10e Firmware	All versions
Zyxel	Vmg3312-B10a Firmware	All versions
Zyxel	Vmg3313-B10a Firmware	All versions
Zyxel	Vmg3926-B10b Firmware	All versions
Zyxel	Vmg4325-B10a Firmware	All versions
Zyxel	Vmg4380-B10a Firmware	All versions
Zyxel	Vmg8324-B10a Firmware	All versions
Zyxel	Vmg8924-B10a Firmware	All versions
Zyxel	Sbg3300-N000 Firmware	All versions
Zyxel	Sbg3300-Nb00 Firmware	All versions
Zyxel	Sbg3500-N000 Firmware	All versions
Zyxel	Sbg3500-Nb00 Firmware	All versions

References

Timeline

Published: Feb 4, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-40890?

How severe is CVE-2024-40890?

CVE-2024-40890 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 19.31% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2024-40890?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-40890?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST