Belden Hirschmann HiOS/Hirschmann HiSecOS EAGLE up to 03.0.x/05.07/06.1.04/06.1.4/06.2.00 improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.34

Summaryinfo

A vulnerability, which was classified as critical, has been found in Belden Hirschmann HiOS and Hirschmann HiSecOS EAGLE up to 03.0.x/05.07/06.1.04/06.1.4/06.2.00. The affected element is an unknown function. Performing a manipulation results in improper authentication. This vulnerability is identified as CVE-2018-25236. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Belden Hirschmann HiOS and Hirschmann HiSecOS EAGLE up to 03.0.x/05.07/06.1.04/06.1.4/06.2.00. This affects an unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at assets.belden.com. This vulnerability is uniquely identified as CVE-2018-25236 since 04/03/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/04/2026).

Upgrading to version 03.1.00, 06.1.05 or 07.0.00 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Hirschmann HiOS/Hirschmann HiSecOS EAGLE 03.1.00/06.1.05/07.0.00

Timelineinfo

04/03/2026 CVE reserved
04/04/2026 +1 days Advisory disclosed
04/04/2026 +0 days VulDB entry created
04/04/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: assets.belden.com
Status: Confirmed

CVE: CVE-2018-25236 (🔒)
GCVE (CVE): GCVE-0-2018-25236
GCVE (VulDB): GCVE-100-355251

Entryinfo

Created: 04/04/2026 07:40
Changes: 04/04/2026 07:40 (75)
Complete: 🔍
Cache ID: 216:3DE:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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