{"id":"CVE-2016-0128","aliases":["EUVD-2016-0166","GHSA-3mv9-ggpf-rmx9"],"status":"published","title":"The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2...","description":"The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 do not properly establish an RPC channel, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka \"Windows SAM and LSAD Downgrade Vulnerability\" or \"BADLOCK.\"","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.20801,"percentile":0.97561,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-254"],"published":"2016-04-12T23:00:00Z","modified":"2026-06-17T00:36:58Z","products":[{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_7"},{"vendor":"microsoft","product":"windows_8.1"},{"vendor":"microsoft","product":"windows_rt_8.1"},{"vendor":"microsoft","product":"windows_server_2008"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_vista"}],"references":[{"url":"http://badlock.org/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-047","tags":["vendor-advisory","x_refsource_MS","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.kb.cert.org/vuls/id/813296","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://www.samba.org/samba/security/CVE-2016-2118.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://bto.bluecoat.com/security-advisory/sa122","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"http://www.securitytracker.com/id/1035534","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-0128"},{"url":"http://badlock.org"},{"url":"https://github.com/advisories/GHSA-3mv9-ggpf-rmx9"}],"sources":{"cve":[{"id":"CVE-2016-0128","description":"The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 do not properly establish an RPC channel, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka \"Windows SAM and LSAD Downgrade Vulnerability\" or \"BADLOCK.\"","status":"published","published":"2016-04-12T23:00:00Z","modified":"2024-08-05T22:08:13.324Z","updated_at":"2026-11-02T14:33:37.12286Z"}],"euvd":[{"id":"EUVD-2016-0166","description":"The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 do not properly establish an RPC channel, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka \"Windows SAM and LSAD Downgrade Vulnerability\" or \"BADLOCK.\"","status":"published","published":"2016-04-12T23:00:00Z","modified":"2024-08-05T22:08:13Z","updated_at":"2026-11-03T02:23:02.73611Z"}],"ghsa":[{"id":"GHSA-3mv9-ggpf-rmx9","title":"The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2...","description":"The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 do not properly establish an RPC channel, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka \"Windows SAM and LSAD Downgrade Vulnerability\" or \"BADLOCK.\"","status":"published","published":"2022-05-13T01:54:04Z","modified":"2025-04-12T12:59:30Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:01:26.909163Z"}],"nvd":[{"id":"CVE-2016-0128","description":"The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 do not properly establish an RPC channel, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka \"Windows SAM and LSAD Downgrade Vulnerability\" or \"BADLOCK.\"","status":"published","published":"2016-04-12T23:59:06.587Z","modified":"2026-06-17T00:36:58.257Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-254"],"updated_at":"2026-11-02T14:03:23.795791Z"}]}}