CVE-2024-14034 Hirschmann HiEOS Authentication Bypass via HTTP Management Module
Unauthenticated remote attackers can bypass authentication on Hirschmann HiEOS devices to gain administrative access and modify firmware or 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-2024-14034?
CVE-2024-14034 is a critical authentication bypass vulnerability in Belden Hirschmann HiEOS LRS11, published on 2 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Hirschmann HiEOS devices versions prior to 01.1.00 contain an authentication bypass vulnerability in the HTTP(S) management module that allows unauthenticated remote attackers to gain administrative access by sending specially crafted HTTP(S) requests. Attackers can exploit improper authentication handling to obtain elevated privileges and perform unauthorized actions including configuration download or upload and firmware modification.
Weakness: CWE-287
Which versions are affected by CVE-2024-14034?
How do I fix CVE-2024-14034?
No fix has been published for CVE-2024-14034 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-14034 being exploited?
There is no known exploitation of CVE-2024-14034 in the wild and no public exploit code.
Sources
Also known as GHSA-6w3c-869c-375q.