CRITICALVulnerability
Verified
Global

NVD CRITICAL: CVE-2018-25236 — Hirschmann HiOS and HiSecOS products RSP, RSPE, RSPS, RSPL, MSP, EES, EESX, GRS,...

Friday, April 3, 2026 at 11:17 PM UTC·Source: NIST NVD

Updated: Monday, April 6, 2026 at 12:17 AM UTC

Executive Summary

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

Analysis

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. CVSS Score: 9.8. Published: 2026-04-03T23:17:00.823.

Indicators of Compromise (1)

CVE (1)
CVE-2018-25236
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Apr 3, 2026. Verified by: NIST.

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