{"cve":"CVE-2021-42794","nvd":{"published":"2023-12-16T01:15:07.367","modified":"2026-06-17T04:10:09.157","status":"Modified","description":"An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior. The application allows a client to provide a malicious connection string that could allow an adversary to port scan the LAN, depending on the hosts' responses.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":[],"references":["https://www.aveva.com/en/products/edge/","https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01","https://www.exploit-db.com/docs/english/17254-connection-string-parameter-pollution-attacks.pdf","https://www.aveva.com/en/products/edge/","https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01"],"products":["aveva:edge"],"source":"nvd","synced_at":"2026-10-19T21:42:34.585441961+00:00"},"epss":{"cve":"CVE-2021-42794","score":0.01199,"percentile":0.68156,"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."]}