CVE-2021-31630

high

Description

Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary code via the "Hardware Layer Code Box" component on the "/hardware" page of the application.

References

https://www.youtube.com/watch?v=l08DHB08Gow

https://packetstormsecurity.com/files/162563/OpenPLC-WebServer-3-Remote-Code-Execution.html

Details

Source: Mitre, NVD

Published: 2021-08-03

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

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