CVE-2016-0128

The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2...

6.8 Medium

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."

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

20.8%Up 10.9 points since Feb 4, 2022

What each source reports

NVD Score used 6.8

Record: CVE-2016-0128
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS 2.0: 5.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness: CWE-254
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-0128
Updated: 2026-11-02

EUVDEUVD-2016-0166 No score

Record: EUVD-2016-0166
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3mv9-ggpf-rmx9 6.8

The SAM and LSAD protocol implementations in Microsoft Windows Vista SP2, Windows Server 2008 SP2...

Record: GHSA-3mv9-ggpf-rmx9
CVSS 3.1: 6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-0128 is a medium vulnerability (CVSS 6.8) in Microsoft Windows 10, published April 12, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 20.8%, the 97th percentile. No source names a fixed version.