CVE-2020-36892 Eibiz i-Media Server Digital Signage 3.8.0 Unauthenticated Privilege Escalation

Critical 9.3 Published 10 Dec 2025 Updated 1 Oct 2026

Unauthenticated attackers can escalate privileges and take over accounts by manipulating user roles via the AMF endpoint in Eibiz i-Media Server.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-36892?

CVE-2020-36892 is a critical vulnerability in EIBIZ Co.,Ltd. i-Media Server Digital Signage, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Eibiz i-Media Server Digital Signage 3.8.0 contains an unauthenticated privilege escalation vulnerability in the updateUser object that allows attackers to modify user roles. Attackers can exploit the /messagebroker/amf endpoint to elevate privileges and take over user accounts by manipulating role settings without authentication.

Weakness: CWE-306

Which versions are affected by CVE-2020-36892?

It affects 1 product.

Products include Eibiz I-Media Server Digital Signage.

How do I fix CVE-2020-36892?

No fix has been published for CVE-2020-36892 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-36892 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36892 exists.

Sources

Also known as GHSA-gm58-7w8m-7hg4.