{"id":"CVE-2021-21963","aliases":["EUVD-2021-9134","GHSA-xf7v-mwgp-rjj7"],"status":"published","title":"An information disclosure vulnerability exists in the Web Server functionality of Sealevel...","description":"An information disclosure vulnerability exists in the Web Server functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted man-in-the-middle attack can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.","severity":{"version":"3.0","score":7.4,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00489,"percentile":0.42526,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-311"],"published":"2022-02-04T22:29:02Z","modified":"2026-06-17T03:36:27Z","products":[{"vendor":"sealevel","product":"seaconnect_370w_firmware"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1391","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21963"},{"url":"https://github.com/advisories/GHSA-xf7v-mwgp-rjj7"}],"sources":{"cve":[{"id":"CVE-2021-21963","description":"An information disclosure vulnerability exists in the Web Server functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted man-in-the-middle attack can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.","status":"published","published":"2022-02-04T22:29:02Z","modified":"2025-04-15T19:11:26.46Z","cvss":[{"version":"3.0","score":7.4,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-311"],"updated_at":"2026-11-02T14:33:00.137099Z"}],"euvd":[{"id":"EUVD-2021-9134","description":"An information disclosure vulnerability exists in the Web Server functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted man-in-the-middle attack can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.","status":"published","published":"2022-02-04T22:29:02Z","modified":"2025-04-15T19:11:26Z","cvss":[{"version":"3.0","score":7.4,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T20:52:26.772603Z"}],"ghsa":[{"id":"GHSA-xf7v-mwgp-rjj7","title":"An information disclosure vulnerability exists in the Web Server functionality of Sealevel...","description":"An information disclosure vulnerability exists in the Web Server functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted man-in-the-middle attack can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.","status":"published","published":"2022-02-09T00:00:37Z","modified":"2023-02-03T05:05:22Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-311"],"updated_at":"2026-11-02T14:53:43.901857Z"}],"nvd":[{"id":"CVE-2021-21963","description":"An information disclosure vulnerability exists in the Web Server functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted man-in-the-middle attack can lead to a disclosure of sensitive information. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.","status":"published","published":"2022-02-04T23:15:10.593Z","modified":"2026-06-17T03:36:27.54Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.0","score":7.4,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-311"],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}