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CVE-2017-20234

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

Published: Apr 3, 2026Updated: Apr 7, 2026 Sources: CVE List NVDCWE-798
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.5%
Top 64.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

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 Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-798

Affected Products

GarrettCom Magnum 6K and 10K Managed SwitchesBeldenNetworking Infrastructure
beldencommercialUSNetworking Infrastructureaka belden hirschmann, tofino security appliance

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Credential Access
Initial Access
View detailed technique mapping

References

https://assets.belden.com/m/114be964b4651983/original/Security-Bulletin-MNS-6K-10K-GarrettCom-BSECV-2017-08.pdf
assets.belden.com
https://www.vulncheck.com/advisories/garrettcom-magnum-6k-and-10k-authentication-bypass-via-hardcoded-string
vulncheck.com

Timeline

Published
Apr 3, 2026
Last Updated
Apr 7, 2026

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