Vulnerability in Belden Garrettcom Magnum 6k And 10k Managed Switches
CVE-2017-20234
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (37.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Belden Garrettcom Magnum 6k And 10k Managed Switches — versions 4.7.7, 0
Weakness classification (CWE)
References
- assets.belden.com/m/114be964b4651983/original/Security-Bulletin-MNS-6K-10K-Garr… (vendor-advisory)
- www.vulncheck.com/advisories/garrettcom-magnum-6k-and-10k-authentication-bypass… (third-party-advisory)
Frequently asked questions
- What is CVE-2017-20234?
- CVE-2017-20234 is a critical-severity vulnerability in Belden Garrettcom Magnum 6k And 10k Managed Switches, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-04-03.
- How severe is CVE-2017-20234?
- Critical severity. CVSS v3 base score is 9.8 out of 10.