CVE-2017-20234 CRITICAL

CVE-2017-20234: GarrettCom Magnum 6K and 10K Authentication Bypass via Hardcoded String

Vendor Belden
Product GarrettCom Magnum 6K and 10K Managed Switches
Weakness CWE-798 · Hardcoded credentials
Published April 3, 2026
Last update April 6, 2026

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

GarrettCom Magnum 6K and 10K managed switches contain an authentication bypass vulnerability that allows unauthenticated attackers to gain unauthorized access by exploiting a hardcoded string in the authentication mechanism. Attackers can bypass login controls to access administrative functions and sensitive switch configuration without valid credentials.

Key dates

02Disclosure timeline

April 3, 2026 CVE published
April 6, 2026 Record updated