{"id":"CVE-2001-1068","aliases":["EUVD-2001-1049","GHSA-whxm-qmcm-hrj6"],"status":"published","title":"qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages...","description":"qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages when an invalid username is provided instead of a valid name, which allows remote attackers to determine valid usernames on the system.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01106,"percentile":0.66033,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-08-31T04:00:00Z","modified":"2026-06-16T21:55:31Z","products":[{"vendor":"qualcomm","product":"qpopper"}],"references":[{"url":"http://www.securityfocus.com/bid/3242","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/7047","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2001-08/0363.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1068"},{"url":"https://github.com/advisories/GHSA-whxm-qmcm-hrj6"}],"sources":{"cve":[{"id":"CVE-2001-1068","description":"qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages when an invalid username is provided instead of a valid name, which allows remote attackers to determine valid usernames on the system.","status":"published","published":"2002-02-02T05:00:00Z","modified":"2024-08-08T04:44:07.255Z","updated_at":"2026-11-02T14:34:42.354707Z"}],"euvd":[{"id":"EUVD-2001-1049","description":"qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages when an invalid username is provided instead of a valid name, which allows remote attackers to determine valid usernames on the system.","status":"published","published":"2002-02-02T05:00:00Z","modified":"2024-08-08T04:44:07Z","updated_at":"2026-11-03T01:14:48.585514Z"}],"ghsa":[{"id":"GHSA-whxm-qmcm-hrj6","title":"qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages...","description":"qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages when an invalid username is provided instead of a valid name, which allows remote attackers to determine valid usernames on the system.","status":"published","published":"2022-04-30T18:17:17Z","modified":"2023-01-30T05:05:10Z","updated_at":"2026-11-02T14:47:12.491869Z"}],"nvd":[{"id":"CVE-2001-1068","description":"qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages when an invalid username is provided instead of a valid name, which allows remote attackers to determine valid usernames on the system.","status":"published","published":"2001-08-31T04:00:00Z","modified":"2026-06-16T21:55:31.413Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:40.572315Z"}]}}