{"id":"CVE-2021-20706","aliases":["EUVD-2021-8121","GHSA-3fvr-47g6-5g62"],"status":"published","title":"Improper input validation vulnerability in the WebManager CLUSTERPRO X 1.0 for Windows and later,...","description":"Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote file upload via network.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01114,"percentile":0.6649,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2021-11-02T23:30:15Z","modified":"2026-06-17T03:34:17Z","products":[{"vendor":"nec","product":"clusterpro_x"},{"vendor":"nec","product":"clusterpro_x_singleserversafe"},{"vendor":"nec","product":"expresscluster_x"},{"vendor":"nec","product":"expresscluster_x_singleserversafe"},{"vendor":"nec corporation","product":"clusterpro x"}],"references":[{"url":"https://jpn.nec.com/security-info/secinfo/nv21-015_en.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20706"},{"url":"https://github.com/advisories/GHSA-3fvr-47g6-5g62"}],"sources":{"cve":[{"id":"CVE-2021-20706","description":"Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote file upload via network.","status":"published","published":"2021-11-02T23:30:15Z","modified":"2024-08-03T17:53:21.184Z","updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2021-8121","description":"Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote file upload via network.","status":"published","published":"2021-11-02T23:30:15Z","modified":"2024-08-03T17:53:21Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-3fvr-47g6-5g62","title":"Improper input validation vulnerability in the WebManager CLUSTERPRO X 1.0 for Windows and later,...","description":"Improper input validation vulnerability in the WebManager CLUSTERPRO X 1.0 for Windows and later, EXPRESSCLUSTER X 1.0 for Windows and later allows attacker to remote file upload via network.","status":"published","published":"2022-05-24T19:19:38Z","modified":"2023-01-30T05:03:17Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:46:48.522337Z"}],"nvd":[{"id":"CVE-2021-20706","description":"Improper input validation vulnerability in the WebManager CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote file upload via network.","status":"published","published":"2021-11-03T00:15:07.93Z","modified":"2026-06-17T03:34:17.553Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:07:00.549994Z"}]}}