CVEvulnerability

CVE-2024-40891

8.8 HIGH Known exploited Published 2025-02-04 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Zyxel DSL CPE OS Command Injection Vulnerability — Zyxel DSL CPE Devices

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.

Added to KEV
2025-02-11
Remediation due
2025-03-04
Ransomware 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.
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
Status
Analyzed
Published
2025-02-04
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-78

Description

**UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the management commands 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 via Telnet.

Affected configurations

• zyxel vmg1312-b10a firmware • zyxel vmg1312-b10b firmware • zyxel vmg1312-b10e firmware • zyxel vmg3312-b10a firmware • zyxel vmg3313-b10a firmware • zyxel vmg3926-b10b firmware • zyxel vmg4325-b10a firmware • zyxel vmg4380-b10a firmware • zyxel vmg8324-b10a firmware • zyxel vmg8924-b10a firmware • zyxel sbg3300-n000 firmware • zyxel sbg3300-nb00 firmware • zyxel sbg3500-n000 firmware • zyxel sbg3500-nb00 firmware

Related

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References