What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-03 · updated 2026-07-21
• Weakness: CWE-798

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.

Affected products

• Belden GarrettCom Magnum 6K and 10K Managed Switches: through 4.6.0; through 4.7.6

References

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

Get alerted when CVE-2017-20234 or the next vulnerability affects your stack