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⚠️ CISA Known Exploited Vulnerability

Active Threat

This vulnerability is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog. Active exploitation has been observed in the wild. This poses significant risk to federal enterprises and should be prioritized for immediate patching.

View CISA KEV Catalog

CVE-2024-40891

High CISA KEV
Low Medium High Critical
8.8
CVSS Score
Published: Feb 04, 2025
Last Modified: Oct 27, 2025

Vulnerability 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.

CVSS Metrics

Common Vulnerability Scoring System

Vector String:

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
N
Attack Complexity
L
Privileges Required
L
User Interaction
N
Scope
U
Confidentiality
H
Integrity
H
Availability
H

Known Affected Software

14 configuration(s) from 1 vendor(s)

sbg3300-n000_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:sbg3300-n000_firmware:-:*:*:*:*:*:*:*
vmg3926-b10b_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg3926-b10b_firmware:-:*:*:*:*:*:*:*
vmg8924-b10a_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg8924-b10a_firmware:-:*:*:*:*:*:*:*
vmg4380-b10a_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg4380-b10a_firmware:-:*:*:*:*:*:*:*
vmg1312-b10b_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg1312-b10b_firmware:-:*:*:*:*:*:*:*
vmg1312-b10a_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg1312-b10a_firmware:-:*:*:*:*:*:*:*
vmg1312-b10e_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg1312-b10e_firmware:-:*:*:*:*:*:*:*
sbg3300-nb00_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:sbg3300-nb00_firmware:-:*:*:*:*:*:*:*
vmg8324-b10a_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg8324-b10a_firmware:-:*:*:*:*:*:*:*
vmg3312-b10a_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg3312-b10a_firmware:-:*:*:*:*:*:*:*
vmg4325-b10a_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg4325-b10a_firmware:-:*:*:*:*:*:*:*
sbg3500-nb00_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:sbg3500-nb00_firmware:-:*:*:*:*:*:*:*
sbg3500-n000_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:sbg3500-n000_firmware:-:*:*:*:*:*:*:*
vmg3313-b10a_firmware
Version:
-
CPE:
cpe:2.3:o:zyxel:vmg3313-b10a_firmware:-:*:*:*:*:*:*:*
This vulnerability affects 14 software configuration(s). Ensure you patch all affected systems.

References & Resources

Severity Details

8.8
out of 10.0
High

CISA KEV Status

Active Exploitation

Listed in CISA's Known Exploited Vulnerabilities catalog

View on CISA KEV

Key Information

Published Date
February 04, 2025

External Resources

NIST
NIST NVD
National Vulnerability Database
CD
CVE Details
Detailed vulnerability info
MT
MITRE CVE
Official CVE record