CVE-2021-31630

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-94

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://packetstormsecurity.com/files/162563/OpenPLC-WebServer-3-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.youtube.com/watch?v=l08DHB08GowExploit, Third Party Advisory
https://packetstormsecurity.com/files/162563/OpenPLC-WebServer-3-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.youtube.com/watch?v=l08DHB08GowExploit, Third Party Advisory

Timeline

Published: Aug 3, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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