{"cve":"CVE-2021-31630","nvd":{"published":"2021-08-03T15:15:08.417","modified":"2026-06-17T03:52:05.827","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-94"],"references":["https://packetstormsecurity.com/files/162563/OpenPLC-WebServer-3-Remote-Code-Execution.html","https://www.youtube.com/watch?v=l08DHB08Gow","https://packetstormsecurity.com/files/162563/OpenPLC-WebServer-3-Remote-Code-Execution.html","https://www.youtube.com/watch?v=l08DHB08Gow"],"products":["openplcproject:openplc_v3_firmware"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-31630","score":0.27075,"percentile":0.98048,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}