CVE-2020-36894 - CVE House
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Status published Critical CVE-2020-36894

Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated User Creation Vulnerability

Vulnerability Description

Eibiz i-Media Server Digital Signage 3.8.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to create admin users through AMF-encoded object manipulation. Attackers can send crafted serialized objects to the /messagebroker/amf endpoint to create administrative users without authentication, bypassing security controls.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • LiquidWorm as Gjoko Krstic of Zero Science Lab

Affected Vendor

EIBIZ Co.,Ltd.

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Affected Software

i-Media Server Digital Signage
Vulnerable Versions:
0

Timeline

Official Publish: December 10th, 2025
Last Modified: April 7th, 2026
Added to House: July 21st, 2026

CVSS Vectors

Weaknesses (CWE)