CVE-2023-22920

CRITICAL

Zyxel LTE3316-M604 V2.00(ABMP.6)C0 - Unauthenticated Remote Access via Telnet Misconfiguration

Title source: llm

Description

A security misconfiguration vulnerability exists in the Zyxel LTE3316-M604 firmware version V2.00(ABMP.6)C0 due to a factory default misconfiguration intended for testing purposes. A remote attacker could leverage this vulnerability to access an affected device using Telnet.

References (1)

Core 1

Core References

Vendor Advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-security-misconfiguration-vulnerability-of-4g-lte-indoor-routers

Scores

CVSS v3 9.8

EPSS 0.0083

EPSS Percentile 74.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-284

Status published

Products (2)

zyxel/lte3202-m437_firmware 1.00\(abwf.1\)c0

zyxel/lte3316-m604_firmware 2.00\(abmp.6\)c0

Published Feb 21, 2023

Tracked Since Feb 18, 2026