Auth bypass in Belden Hirschmann Hieos Lrs11
CVE-2024-14034
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (37.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Belden Hirschmann Hieos Lrs11 — versions 0
Weakness classification (CWE)
References
- assets.belden.com/m/7ec5c6da25ef288/original/Belden_Security_Bulletin_BSECV-202… (vendor-advisory)
- www.vulncheck.com/advisories/hirschmann-hieos-authentication-bypass-via-http-ma… (third-party-advisory)
Frequently asked questions
- What is CVE-2024-14034?
- CVE-2024-14034 is a critical-severity vulnerability in Belden Hirschmann Hieos Lrs11, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-04-02.
- How severe is CVE-2024-14034?
- Critical severity. CVSS v3 base score is 9.8 out of 10.