---
id: CVE-2026-6058
title: >-
  ** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability
  in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could
  allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS)
  condit…
summary: >-
  ** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability
  in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could
  allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS)
  condit…
severity: medium
cvss: 4.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-116
vendor: zyxel
product: wre6505_firmware
affected:
  - wre6505_firmware = v1.00(abdv.3)c0
published: '2026-04-21'
updated: '2026-07-08'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-6058'
references:
  - url: 'https://www.zyxel.com/global/en/support/end-of-life'
    label: security@zyxel.com.tw
tags:
  - nvd
epss: 0.00218
epssPercentile: 0.10844
ingestedAt: '2026-07-08T03:46:38.659Z'
---

## Overview

** UNSUPPORTED WHEN ASSIGNED ** An improper encoding or escaping vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the WLAN to cause a denial-of-service (DoS) condition in the web management interface by convincing an authenticated administrator to visit the “AP Select” page while a malformed SSID is present.

## Affected

- `wre6505_firmware = v1.00(abdv.3)c0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.