CVE-2024-40890**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…
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It affects Zyxel VMG4325-B10A firmware and 14 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Feb 11, 2025; federal agencies had to remediate by Mar 4, 2025. Treat that date as your deadline.
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**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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Added to CISA KEV Feb 11, 2025; federal remediation due Mar 4, 2025The 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.
- EPSS (exploitation in the next 30 days)
- 20.70% (percentile 98)
- Assigned by
- Zyxel
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Zyxel VMG4325-B10A firmware zyxel:vmg4325_b10a_firmware (from the name) | through 1.00(AAFR.4)C0_20170615 | CNA record |
zyxel vmg1312-b10a_firmware zyxel:vmg1312-b10a_firmware | all versions | NVD |
zyxel vmg1312-b10b_firmware zyxel:vmg1312-b10b_firmware | all versions | NVD |
zyxel vmg1312-b10e_firmware zyxel:vmg1312-b10e_firmware | all versions | NVD |
zyxel vmg3312-b10a_firmware zyxel:vmg3312-b10a_firmware | all versions | NVD |
zyxel vmg3313-b10a_firmware zyxel:vmg3313-b10a_firmware | all versions | NVD |
zyxel vmg3926-b10b_firmware zyxel:vmg3926-b10b_firmware | all versions | NVD |
zyxel vmg4325-b10a_firmware zyxel:vmg4325-b10a_firmware | all versions | NVD |
zyxel vmg4380-b10a_firmware zyxel:vmg4380-b10a_firmware | all versions | NVD |
zyxel vmg8324-b10a_firmware zyxel:vmg8324-b10a_firmware | all versions | NVD |
zyxel vmg8924-b10a_firmware zyxel:vmg8924-b10a_firmware | all versions | NVD |
zyxel sbg3300-n000_firmware zyxel:sbg3300-n000_firmware | all versions | NVD |
zyxel sbg3300-nb00_firmware zyxel:sbg3300-nb00_firmware | all versions | NVD |
zyxel sbg3500-n000_firmware zyxel:sbg3500-n000_firmware | all versions | NVD |
zyxel sbg3500-nb00_firmware zyxel:sbg3500-nb00_firmware | all versions | NVD |
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-02-04-2025vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-40890us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.