CVE-2017-20234 GarrettCom Magnum 6K and 10K Authentication Bypass via Hardcoded String
Unauthenticated attackers can bypass login controls on GarrettCom Magnum switches using a hardcoded string to access administrative functions and sensitive configuration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-20234?
CVE-2017-20234 is a critical vulnerability in Belden GarrettCom Magnum 6K and 10K Managed Switches, published on 3 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-798
Which versions are affected by CVE-2017-20234?
How do I fix CVE-2017-20234?
No fix has been published for CVE-2017-20234 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-20234 being exploited?
There is no known exploitation of CVE-2017-20234 in the wild and no public exploit code.
Sources
Also known as GHSA-vrjf-6q9f-r3qr.