CVE-2026-76143
Received Received - Intake

Missing Authorization Bypass in Genian SSL PNS

Publication date: 2026-10-01

Last updated on: 2026-10-01

Assigner: KrCERT/CC

Description
A missing authorization vulnerability in Genian SSL PNS allows an attacker to bypass multi-factor authentication by manipulating a login request parameter.

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Meta Information

Published
2026-10-01
Last Modified
2026-10-01
Generated
2026-10-01
AI Q&A
2026-10-01
EPSS Evaluated
N/A
NVD
CVE-2026-76143
EUVD
EUVD-2026-90485

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
genian ssl_pns to 5.0.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

CVE-2026-76143 is a missing authorization vulnerability in Genian SSL PNS that allows attackers to bypass multi-factor authentication by manipulating a login request parameter called os_type=0. This flaw enables unauthorized access without providing MFA credentials.

Detection Guidance

To detect this vulnerability, monitor login requests to Genian SSL PNS for the parameter os_type=0 in versions below 5.0.0. Check server logs for unusual authentication attempts bypassing MFA. Use network traffic analysis tools to inspect HTTP requests for manipulated parameters.

Impact Analysis

This vulnerability allows attackers to gain unauthorized access to systems protected by Genian SSL PNS without needing valid MFA credentials. It could lead to data breaches, unauthorized system modifications, or further network infiltration depending on the system's configuration.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, potentially violating compliance requirements under GDPR and HIPAA. Organizations using affected Genian SSL PNS versions may face regulatory penalties due to insufficient access controls and authentication mechanisms.

Mitigation Strategies

Immediately upgrade Genian SSL PNS to version 5.0.0 or later to patch the vulnerability. If upgrading is not possible, restrict access to the login endpoint via network controls and enforce strict input validation for the os_type parameter.

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