Remote Code Execution Vulnerability in Unified Remote by Unified Remote
CVE-2021-47891

9.3CRITICAL

Key Information:

Vendor

Unified Intents Ab

Status
Unified Remote
Vendor
CVE Published:
23 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47891?

Unified Remote version 3.9.0.2463 is susceptible to a remote code execution vulnerability that allows attackers to send specially crafted network packets. When exploited, this vulnerability enables the execution of arbitrary commands on the affected system. By connecting to port 9512, attackers can manipulate the service to open a command prompt and initiate the download and execution of malicious payloads, posing a significant security risk to users.

Affected Version(s)

Unified Remote 3.9.0.2463

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-2021-47891 - Proof of Concept

References

https://www.exploit-db.com/exploits/49587
exploit
https://www.unifiedremote.com/
product
https://www.unifiedremote.com/download
product

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

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