CVE-2021-47770

OpenPLC v3 contains an authenticated remote code execution vulnerability that allows attackers with valid credentials to inject malicious code through the hardware configuration interface. Attackers can upload a custom hardware layer with embedded reverse shell code that establishes a network connection to a specified IP and port, enabling remote command execution.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/thiagoralves/OpenPLC_v3
https://www.exploit-db.com/exploits/49803
https://www.openplcproject.com/
https://www.vulncheck.com/advisories/openplc-remote-code-execution

Configurations

No configuration.

History

No history.

Information

Published : 2026-01-21 18:16

Updated : 2026-01-26 15:04

NVD link : CVE-2021-47770

Mitre link : CVE-2021-47770

CVE.ORG link : CVE-2021-47770

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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