CVE-2026-6058

Denial of Service via Improper Encoding in Zyxel WRE6505 Web Management Interface

Published Apr 21, 2026 CVSS 3.1 · 4.5 Medium EPSS < 1% KEV · Not listed
Description
** 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Zyxel
Zyxel wre6505 Firmware
Vendors & Products Zyxel
Zyxel wre6505 Firmware
Type Values Removed Values Added
Title Denial of Service via Improper Encoding in Zyxel WRE6505 Web Management Interface
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description **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. ** 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.
Type Values Removed Values Added
Description **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.
Weaknesses CWE-116
References
Metrics cvssV3_1

{'score': 4.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Zyxel
Published
Updated
Apr 21, 2026, 1:26 PM
Reserved
Apr 10, 2026, 1:11 AM
Status
Analyzed
Published
Apr 21, 2026, 2:16 AM
Modified
Oct 26, 2026, 10:10 PM