February 11, 2025 · Applied Cybernetics Group
CVE-2024-40891 — Zyxel DSL CPE Devices
Zyxel DSL CPE OS Command Injection Vulnerability
- Added to KEV
2025-02-11- Federal due date
2025-03-04- Vendor
- Zyxel
- Product
- DSL CPE Devices
- EPSS
- 97.1th percentile (score 0.197, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- ATT&CK
- T1011 , T1055 · signal rollup
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2024-40891
CISA short 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
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.