{"id":"CVE-2001-1581","aliases":["EUVD-2001-1558","GHSA-285q-389j-cw7m"],"status":"published","title":"The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass...","description":"The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass e-mail attachment filtering policies via a modified name in a Content-Type header.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0126,"percentile":0.6978,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-12-31T05:00:00Z","modified":"2026-06-16T21:56:32Z","products":[{"vendor":"clearswift_limited","product":"mailsweeper"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6801","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.mimesweeper.com/support/technotes/notes/1102.asp","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1581"},{"url":"https://github.com/advisories/GHSA-285q-389j-cw7m"}],"sources":{"cve":[{"id":"CVE-2001-1581","description":"The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass e-mail attachment filtering policies via a modified name in a Content-Type header.","status":"published","published":"2007-05-31T00:00:00Z","modified":"2024-08-08T04:58:11.398Z","updated_at":"2026-11-02T14:34:42.680977Z"}],"euvd":[{"id":"EUVD-2001-1558","description":"The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass e-mail attachment filtering policies via a modified name in a Content-Type header.","status":"published","published":"2007-05-31T00:00:00Z","modified":"2024-08-08T04:58:11Z","updated_at":"2026-11-03T00:56:27.245824Z"}],"ghsa":[{"id":"GHSA-285q-389j-cw7m","title":"The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass...","description":"The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass e-mail attachment filtering policies via a modified name in a Content-Type header.","status":"published","published":"2022-04-30T18:18:19Z","modified":"2023-01-30T05:05:42Z","updated_at":"2026-11-02T14:47:20.238022Z"}],"nvd":[{"id":"CVE-2001-1581","description":"The File Blocker feature in Clearswift MAILsweeper for SMTP 4.2 allows remote attackers to bypass e-mail attachment filtering policies via a modified name in a Content-Type header.","status":"published","published":"2001-12-31T05:00:00Z","modified":"2026-06-16T21:56:32.9Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:41.313877Z"}]}}