CVE-2017-20234 PUBLISHED

GarrettCom Magnum 6K and 10K Authentication Bypass via Hardcoded String

Assigner: VulnCheck
Reserved: 03.04.2026 Published: 03.04.2026 Updated: 03.04.2026

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.

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Belden
Product	GarrettCom Magnum 6K and 10K Managed Switches
Versions	Default: affected affected from 0 to 4.6.0 (incl.) affected from 0 to 4.7.6 (incl.) Version 4.7.7 is unaffected

References

Problem Types

CWE-798 Use of Hard-coded Credentials CWE