{"id":"CVE-1999-0856","aliases":["EUVD-1999-0837","GHSA-mphc-h5cf-cch2"],"status":"published","title":"login in Slackware 7.0 allows remote attackers to identify valid users on the system by reporting...","description":"login in Slackware 7.0 allows remote attackers to identify valid users on the system by reporting an encryption error when an account is locked or does not exist.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01038,"percentile":0.64196,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"1999-12-01T05:00:00Z","modified":"2026-06-16T21:49:12Z","products":[{"vendor":"slackware","product":"slackware_linux"}],"references":[{"url":"https://marc.info/?l=bugtraq\u0026m=94416739411280\u0026w=2","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-0856"},{"url":"https://github.com/advisories/GHSA-mphc-h5cf-cch2"}],"sources":{"cve":[{"id":"CVE-1999-0856","description":"login in Slackware 7.0 allows remote attackers to identify valid users on the system by reporting an encryption error when an account is locked or does not exist.","status":"published","published":"2000-06-02T04:00:00Z","modified":"2024-08-01T16:55:27.892Z","updated_at":"2026-11-02T14:33:53.911988Z"}],"euvd":[{"id":"EUVD-1999-0837","description":"login in Slackware 7.0 allows remote attackers to identify valid users on the system by reporting an encryption error when an account is locked or does not exist.","status":"published","published":"2000-06-02T04:00:00Z","modified":"2024-08-01T16:55:27Z","updated_at":"2026-11-03T03:50:45.175548Z"}],"ghsa":[{"id":"GHSA-mphc-h5cf-cch2","title":"login in Slackware 7.0 allows remote attackers to identify valid users on the system by reporting...","description":"login in Slackware 7.0 allows remote attackers to identify valid users on the system by reporting an encryption error when an account is locked or does not exist.","status":"published","published":"2022-04-30T18:11:20Z","modified":"2023-01-29T05:01:32Z","updated_at":"2026-11-02T14:44:50.787695Z"}],"nvd":[{"id":"CVE-1999-0856","description":"login in Slackware 7.0 allows remote attackers to identify valid users on the system by reporting an encryption error when an account is locked or does not exist.","status":"published","published":"1999-12-01T05:00:00Z","modified":"2026-06-16T21:49:12.007Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T13:58:40.923898Z"}]}}