Authentication Bypass Vulnerability in Hirschmann HiEOS Devices
CVE-2024-14034

9.3CRITICAL

Key Information:

Vendor

Belden

Status
Hirschmann Hieos Lrs11
Vendor
CVE Published:
2 April 2026

What is CVE-2024-14034?

The Hirschmann HiEOS devices are susceptible to an authentication bypass flaw in their HTTP(S) management module. This vulnerability allows unauthenticated attackers to send specially crafted HTTP(S) requests, potentially granting them administrative access. By exploiting this flaw, attackers can manipulate the system to perform unauthorized activities, such as downloading or uploading configurations, and modifying firmware settings, thus compromising the integrity and security of the devices.

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Affected Version(s)

Hirschmann HiEOS LRS11 0 < 01.1.00

References

https://assets.belden.com/m/7ec5c6da25ef288/original/Beld...
vendor-advisory
https://www.vulncheck.com/advisories/hirschmann-hieos-aut...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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