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

6.9MEDIUM

Key Information:

Vendor

Red

Status
Red-v Super Digital Signage System Rxv-a740r
Vendor
CVE Published:
6 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-36921?

The RED-V Super Digital Signage System version 5.1.1 is susceptible to an information disclosure vulnerability that permits unauthenticated attackers to access sensitive webserver log files. By exploiting this flaw, attackers can navigate various endpoints to extract critical system resources and debug log information without needing authentication, potentially compromising the integrity and confidentiality of the system.

Affected Version(s)

RED-V Super Digital Signage System RXV-A740R 5.1.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-36921 - Proof of Concept

References

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-56...
third-party-advisory
https://packetstormsecurity.com/files/160073
exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/191803
vdb-entry

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

LiquidWorm as Gjoko Krstic of Zero Science Lab
JSON
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CVE-2020-36921 : Information Disclosure Vulnerability in RED-V Super Digital Signage System