{"id":"CVE-1999-0366","aliases":["EUVD-1999-0366","GHSA-5fcq-r7m3-pxf5"],"status":"published","title":"In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank...","description":"In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.","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":"2026-11-08","score":0.03686,"percentile":0.89768,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"1999-02-08T05:00:00Z","modified":"2026-06-16T21:48:14Z","products":[{"vendor":"microsoft","product":"windows_nt"}],"references":[{"url":"http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ214840","tags":["vendor-advisory","x_refsource_MSKB","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-004","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-0366"},{"url":"http://support.microsoft.com/default.aspx?scid=kb;[LN];Q214840"},{"url":"https://github.com/advisories/GHSA-5fcq-r7m3-pxf5"}],"sources":{"cve":[{"id":"CVE-1999-0366","description":"In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.","status":"published","published":"1999-09-29T04:00:00Z","modified":"2024-08-01T16:34:52.127Z","updated_at":"2026-11-02T14:33:53.60785Z"}],"euvd":[{"id":"EUVD-1999-0366","description":"In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.","status":"published","published":"1999-09-29T04:00:00Z","modified":"2024-08-01T16:34:52Z","updated_at":"2026-11-03T03:50:47.002367Z"}],"ghsa":[{"id":"GHSA-5fcq-r7m3-pxf5","title":"In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank...","description":"In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.","status":"published","published":"2022-04-30T18:10:27Z","modified":"2025-04-03T03:33:34Z","cwes":["CWE-287"],"updated_at":"2026-11-02T15:00:36.60124Z"}],"nvd":[{"id":"CVE-1999-0366","description":"In some cases, Service Pack 4 for Windows NT 4.0 can allow access to network shares using a blank password, through a problem with a null NT hash value.","status":"published","published":"1999-02-08T05:00:00Z","modified":"2026-06-16T21:48:14.543Z","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":"2026-11-02T13:58:30.236077Z"}]}}