{"id":"CVE-2021-42794","aliases":["EUVD-2021-29750","GHSA-r275-q95r-mr46"],"status":"published","title":"An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior....","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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01199,"percentile":0.68543,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2023-12-16T00:00:00Z","modified":"2026-06-17T04:10:09Z","products":[{"vendor":"aveva","product":"edge"}],"references":[{"url":"https://www.exploit-db.com/docs/english/17254-connection-string-parameter-pollution-attacks.pdf","tags":["x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.aveva.com/en/products/edge/","tags":["x_transferred","Product"]},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01","tags":["x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-42794"},{"url":"https://github.com/advisories/GHSA-r275-q95r-mr46"}],"sources":{"cve":[{"id":"CVE-2021-42794","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.","status":"published","published":"2023-12-16T00:00:00Z","modified":"2024-08-04T03:38:50.234Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:58.739039Z"}],"euvd":[{"id":"EUVD-2021-29750","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.","status":"published","published":"2023-12-16T00:00:00Z","modified":"2024-08-04T03:38:50Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N","level":"medium"}],"updated_at":"2026-11-03T03:24:15.299027Z"}],"ghsa":[{"id":"GHSA-r275-q95r-mr46","title":"An issue was discovered in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior....","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.","status":"published","published":"2023-12-16T03:30:21Z","modified":"2023-12-16T03:30:25Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T14:55:13.486361Z"}],"nvd":[{"id":"CVE-2021-42794","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.","status":"published","published":"2023-12-16T01:15:07.367Z","modified":"2026-06-17T04:10:09.157Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}