Feed/CVE-2021-47770
CVE-2021-47770HIGHCVSS 8.8

CVE-2021-47770

Published Jan 21, 2026·Updated Jun 16, 2026

NVD Description

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 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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