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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.

PUBLISHED Reserved 2026-04-03 | Published 2026-04-03 | Updated 2026-04-06 | Assigner VulnCheck




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

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

Problem types

CWE-798 Use of Hard-coded Credentials

Product status

Default status
affected

Any version
affected

Any version
affected

4.7.7 (semver)
unaffected

References

assets.belden.com/...MNS-6K-10K-GarrettCom-BSECV-2017-08.pdf vendor-advisory

www.vulncheck.com/...hentication-bypass-via-hardcoded-string third-party-advisory

cve.org (CVE-2017-20234)

nvd.nist.gov (CVE-2017-20234)

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