CVE-2018-25236

CRITICAL

Hirschmann HiOS HiSecOS Authentication Bypass via HTTP Management

Title source: cna
STIX 2.1

Description

Hirschmann HiOS and HiSecOS products RSP, RSPE, RSPS, RSPL, MSP, EES, EESX, GRS, OS, RED, EAGLE contain an authentication bypass vulnerability in the HTTP(S) management module that allows unauthenticated remote attackers to gain administrative access by crafting specially formed HTTP requests. Attackers can exploit improper authentication handling to obtain the authentication status and privileges of a previously authenticated user without providing valid credentials.

Scores

CVSS v3 9.8
EPSS 0.0050
EPSS Percentile 39.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-287
Status published
Products (8)
Belden/Hirschmann HiOS < 05.07
Belden/Hirschmann HiOS < 06.1.04
Belden/Hirschmann HiOS < 06.2.00
Belden/Hirschmann HiOS 03.1.00
Belden/Hirschmann HiOS 06.1.05
Belden/Hirschmann HiOS 07.0.00
Belden/Hirschmann HiSecOS EAGLE < 03.00.02
Belden/Hirschmann HiSecOS EAGLE 03.0.03
Published Apr 03, 2026
Tracked Since Apr 04, 2026