# CVE-2024-40891: A Zyxel DSL CPE Devices bug is being used in attacks

Status: Being used now (CISA KEV, added 2025-02-11)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Zyxel DSL CPE Devices (CVE-2024-40891) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2024-40891. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official 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.

## Sources
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2024-40891

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.