CVE-2021-47770
High · 8.8CVSS
8.8
EPSS
0.8%
Published
Jan 21, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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