CVE detail
CVE-2024-40890: Zyxel DSL CPE OS Command Injection Vulnerability
Source: CISA Known Exploited Vulnerabilities catalog · back to feed
Vendor / product
Zyxel · DSL CPE Devices
- Date added (KEV)
- Feb 11, 2025
- CISA due date
- Mar 04, 2025
- Ransomware campaign use
- Unknown
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.
Vendor fix: Vendor advisory
Scorifya interpretation
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Plain English
Technical detail
From CISA
Multiple Zyxel DSL CPE devices contain a post-authentication command injection vulnerability in the CGI program that could allow an authenticated attacker to execute OS commands via a crafted HTTP request.
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/service-provider/global/en/security-advisories/zyxel-security-advisory-command-injection-insecure-in-certain-legacy-dsl-cpe-02-04-2025 ; https://nvd.nist.gov/vuln/detail/CVE-2024-40890
See what attackers can see on your domain
This vulnerability is on CISA's Known Exploited Vulnerabilities list, so it is being exploited in the wild right now. Scorifya can't test for Zyxel directly, but in about 30 seconds it shows what your own domain exposes publicly across TLS, security headers, DNS, and cookies: the surface attackers probe first.
SOC 2 compliance
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See Scorifya Controls →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
Other recent CVEs from Zyxel
- CVE-2026-7273GS1900 Series Switches, Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability
- CVE-2024-40891DSL CPE Devices, Zyxel DSL CPE OS Command Injection Vulnerability
- CVE-2024-11667Multiple Firewalls, Zyxel Multiple Firewalls Path Traversal Vulnerability
- CVE-2017-6884EMG2926 Routers, Zyxel EMG2926 Routers Command Injection Vulnerability
- CVE-2017-18368P660HN-T1A Routers, Zyxel P660HN-T1A Routers Command Injection Vulnerability