{"id":"CVE-2007-6737","aliases":["EUVD-2010-0017","GHSA-9x66-ghqx-8g5r","PYSEC-2010-21"],"status":"published","title":"Improper Authentication in pyftpdlib","description":"FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies an invalid username, which makes it easier for remote attackers to obtain access via a brute-force attack.","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":"2026-11-09","score":0.02111,"percentile":0.81928,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2010-10-19T19:00:00Z","modified":"2026-06-16T22:48:40Z","fixes":[{"ecosystem":"PyPI","package":"pyftpdlib","fixed_in":["0.2.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"pyftpdlib","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"pyftpdlib","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"pyftpdlib","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.0"}]}]}],"products":[{"vendor":"g.rodola","product":"pyftpdlib"}],"references":[{"url":"http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://code.google.com/p/pyftpdlib/issues/detail?id=20","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://code.google.com/p/pyftpdlib/source/diff?spec=svn23\u0026r=23\u0026format=side\u0026path=/trunk/pyftpdlib/FTPServer.py","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://code.google.com/p/pyftpdlib/source/detail?r=23","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-6737","tags":["advisory"]},{"url":"https://github.com/giampaolo/pyftpdlib/issues/20","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9x66-ghqx-8g5r","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-21.yaml","tags":["web"]},{"url":"https://github.com/giampaolo/pyftpdlib","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2007-6737","description":"FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies an invalid username, which makes it easier for remote attackers to obtain access via a brute-force attack.","status":"published","published":"2010-10-19T19:00:00Z","modified":"2024-09-17T01:01:07.402Z","updated_at":"2026-11-02T13:33:07.91528Z"}],"euvd":[{"id":"EUVD-2010-0017","description":"FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies an invalid username, which makes it easier for remote attackers to obtain access via a brute-force attack.","status":"published","published":"2010-10-19T19:00:00Z","modified":"2024-09-17T01:01:07Z","updated_at":"2026-11-03T00:28:53.686001Z"}],"ghsa":[{"id":"GHSA-9x66-ghqx-8g5r","title":"Improper Authentication in pyftpdlib","description":"FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies an invalid username, 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attack.","status":"published","published":"2010-10-19T20:00:01.707Z","modified":"2026-06-16T22:48:40.613Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:01:24.110006Z"}],"osv":[{"id":"GHSA-9x66-ghqx-8g5r","title":"Improper Authentication in pyftpdlib","description":"FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies an invalid username, which makes it easier for remote attackers to obtain access via a brute-force 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