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CVE-2018-25236

Hirschmann HiOS HiSecOS Authentication Bypass via HTTP Management

Published: Apr 3, 2026Updated: Apr 7, 2026 Sources: CVE List NVDCWE-287
9.8CRITICAL
NVD MITRE
EPSS Score
0.5%
Top 60.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287

Affected Products

Belden
commercial·USaka belden hirschmann, tofino security appliance
Hirschmann HiOS
Networking Infrastructure
Hirschmann HiSecOS EAGLE
Networking Infrastructure

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://assets.belden.com/m/52ecadbb5f1b0e04/original/Security-Bulletin-Web-Server-Authentication-Bypass-HiOS-HiSecOS-Hirschmann-BSECV-2018-05.pdf
assets.belden.com
https://www.vulncheck.com/advisories/hirschmann-hios-hisecos-authentication-bypass-via-http-management
vulncheck.com

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