Is CVE-2024-14034 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2024-14034 being exploited in the wild.

How severe is CVE-2024-14034?

Critical severity, with a CVSS score of 9.8, published 2 April 2026.

Which products and versions are affected?

Hirschmann HiEOS LRS11 prior to 01.1.00.

Is there a fix for CVE-2024-14034?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2024-14034 attacked?

It is attacked over the network, in an operating system.

Am I affected by CVE-2024-14034?

Check whether you run Hirschmann HiEOS LRS11 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2024-14034: Hirschmann HiEOS auth bypass in HTTP management module

CVE-2024-14034 · Severity: critical · CVSS 9.8 · Published 2026-04-02

Hirschmann HiEOS devices, which are industrial networking operating systems used in critical infrastructure, contain a security flaw in their web management interface. An attacker can bypass login requirements to gain full administrative control over the device. This allows them to steal configuration files, disrupt network traffic, or install malicious firmware, potentially leading to significant operational downtime or data theft.

Vendors: Hirschmann.

Quick answers

Is CVE-2024-14034 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2024-14034 being exploited in the wild.
How severe is CVE-2024-14034?: Critical severity, with a CVSS score of 9.8, published 2 April 2026.
Which products and versions are affected?: Hirschmann HiEOS LRS11 prior to 01.1.00.
Is there a fix for CVE-2024-14034?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2024-14034 attacked?: It is attacked over the network, in an operating system.
Am I affected by CVE-2024-14034?: Check whether you run Hirschmann HiEOS LRS11 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An authentication bypass vulnerability (CWE-287) exists in the HTTP(S) management module of Hirschmann HiEOS. The root cause is improper authentication handling when processing specially crafted HTTP(S) requests. A remote, unauthenticated attacker can exploit this flaw over the network to obtain elevated administrative privileges. Successful exploitation enables unauthorized actions such as downloading or uploading device configurations and performing firmware modifications. The vulnerability is addressed in HiEOS version 01.1.00.

Affected products

Hirschmann (Belden) HiEOS LRS11 prior to 01.1.00

Timeline

2026-04-02: advisory: Initial advisory published by Belden/VulnCheck
2026-04-02: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.