CVE-2024-40891 — Zyxel DSL CPE OS Command Injection Vulnerability
CVE-2024-40891: Zyxel DSL CPE OS Command Injection Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Zyxel |
| Product | DSL CPE Devices |
| Date added | 2025-02-11 |
| Due date | 2025-03-04 |
| Ransomware campaign use | Unknown |
Description
Multiple Zyxel DSL CPE devices contain a post-authentication command injection vulnerability in the management commands that could allow an authenticated attacker to execute OS commands via Telnet.
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.
Notes
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-2024-40891
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-40891
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog