CVE-2020-36921 RED-V Super Digital Signage System 5.1.1 Log Information Disclosure Vulnerability

Medium 6.9 Published Updated

Unauthenticated attackers can access sensitive webserver log files and debug information via multiple endpoints in the RED-V Super Digital Signage System.

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-2020-36921?

CVE-2020-36921 is a medium-severity vulnerability in RED-V Super Digital Signage System RXV-A740R, published on 6 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

RED-V Super Digital Signage System 5.1.1 contains an information disclosure vulnerability that allows unauthenticated attackers to access sensitive webserver log files. Attackers can visit multiple endpoints to retrieve system resources and debug log information without authentication.

Weakness: CWE-548

Which versions are affected by CVE-2020-36921?

How do I fix CVE-2020-36921?

No fix has been published for CVE-2020-36921 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-36921 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36921 exists.

Sources

Also known as GHSA-frqw-j5x4-8q93.

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