CVE-2024-40890
**UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the CGI program of the legacy DSL CPE Zyxel VMG4325-B10A…
Browse: All 2024 CVEs · All vendors
- CVSS score
- 8.8 High
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- CISA KEV
- Yes — actively exploited (added 2025-02-11, remediation due 2025-03-04)
- Weakness (CWE)
- CWE-78
- Published
- 2025-02-04
- Last modified
- 2026-06-17
- NVD status
- Analyzed
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.
Affected products
- zyxel vmg1312-b10a firmware
- zyxel vmg1312-b10b firmware
- zyxel vmg1312-b10e firmware
- zyxel vmg3312-b10a firmware
- zyxel vmg3313-b10a firmware
- zyxel vmg3926-b10b firmware
- zyxel vmg4325-b10a firmware
- zyxel vmg4380-b10a firmware
- zyxel vmg8324-b10a firmware
- zyxel vmg8924-b10a firmware
- zyxel sbg3300-n000 firmware
- zyxel sbg3300-nb00 firmware
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
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. Federal remediation deadline: 2025-03-04.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.
References
- 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.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40890
FAQ
Is CVE-2024-40890 actively exploited?
Yes. CISA added CVE-2024-40890 to its Known Exploited Vulnerabilities (KEV) catalog on 2025-02-11, with a federal remediation deadline of 2025-03-04. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2024-40890?
CVE-2024-40890 has a CVSS base score of 8.8 (High). Its vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Related vulnerabilities
- CVE-2024-40891 — Zyxel DSL CPE Devices
- CVE-2024-11667 — Zyxel Multiple Firewalls
- CVE-2017-6884 — Zyxel EMG2926 Routers
- CVE-2017-18368 — Zyxel P660HN-T1A Routers
- CVE-2023-27992 — Zyxel Multiple Network-Attached Storage (N
- CVE-2023-33009 — Zyxel Multiple Firewalls
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
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