CVE-2023-22921

HIGH

Zyxel NBG-418N v2 < 1.00(aarp.13)c0 Authenticated Stored XSS via Web Interface

Title source: llm

Description

A cross-site scripting (XSS) vulnerability in the Zyxel NBG-418N v2 firmware versions prior to V1.00(AARP.14)C0 could allow a remote authenticated attacker with administrator privileges to store malicious scripts using a web management interface parameter, resulting in denial-of-service (DoS) conditions on an affected device.

References (1)

Core 1

Core References

Patch, Vendor Advisory

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nbg-418n-v2-home-router

Scores

CVSS v3 7.5

EPSS 0.0060

EPSS Percentile 69.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

zyxel/nbg-418n_firmware < 1.00\(aarp.13\)c0

Published May 01, 2023

Tracked Since Feb 18, 2026