CVE-2024-14034
Received Received - Intake
Authentication Bypass in Hirschmann HiEOS HTTP(S) Management Module

Publication date: 2026-04-02

Last updated on: 2026-04-03

Assigner: VulnCheck

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.
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Meta Information
Published
2026-04-02
Last Modified
2026-04-03
Generated
2026-06-16
AI Q&A
2026-04-03
EPSS Evaluated
2026-06-15
NVD
CVE-2024-14034
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
hirschmann hieos_lrs11 to 01.1.00 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
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Compliance Impact

The vulnerability allows unauthenticated remote attackers to gain administrative access to Hirschmann HiEOS devices, enabling unauthorized configuration changes and firmware modifications.

Such unauthorized access and control over critical network devices can lead to data breaches, unauthorized data processing, and compromise of system integrity, which may violate compliance requirements under standards like GDPR and HIPAA that mandate strict access controls and protection of sensitive data.

Therefore, failure to patch this vulnerability promptly could result in non-compliance with these regulations due to increased risk of unauthorized access and potential data exposure.

Executive Summary

CVE-2024-14034 is a critical vulnerability in the HTTP(S) management module of Hirschmann HiEOS LRS11 devices (versions below 01.1.00).

It allows unauthenticated remote attackers to bypass the web server authentication by sending specially crafted HTTP(S) requests that exploit improper handling of authentication status and privileges.

Successful exploitation grants administrative access to the attacker.

This enables unauthorized actions such as configuration download or upload and firmware modification.

Impact Analysis

This vulnerability can have severe impacts as it allows unauthenticated remote attackers to gain administrative access to Hirschmann HiEOS devices.

Attackers can perform unauthorized actions including downloading or uploading device configurations and modifying firmware.

Such actions can lead to device compromise, disruption of network operations, and potential further exploitation within the affected environment.

Mitigation Strategies

To mitigate CVE-2024-14034, it is advised to promptly apply the security updates released by Belden for Hirschmann HiEOS LRS11 devices.

These updates address the authentication bypass vulnerability in the HTTP(S) management module that allows unauthenticated remote attackers to gain administrative access.

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