High severity8.8NVD Advisory· Published Aug 3, 2021· Updated Jun 17, 2026
CVE-2021-31630
CVE-2021-31630
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- cpe:2.3:o:openplcproject:openplc_v3_firmware:-:*:*:*:*:*:*:*
- Open PLC Webserver/Open PLC Webserverdescription
Patches
Vulnerability mechanics
References
2- packetstormsecurity.com/files/162563/OpenPLC-WebServer-3-Remote-Code-Execution.htmlnvdExploitThird Party AdvisoryVDB Entry
- www.youtube.com/watchnvdExploitThird Party Advisory
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