MS17-004 - Important: Security Update for Local Security Authority Subsystem Service (3216771) - Version: 1.0

Severity Rating: Important
Revision Note: V1.0 (January 10, 2017): Bulletin Published
Summary: A denial of service vulnerability exists in the way the Local Security Authority Subsystem Service (LSASS) handles authentication requests. An attacker who successfully exploited the vulnerability could cause a denial of service on the target system's LSASS service, which triggers an automatic reboot of the system.

from Microsoft Security Bulletins http://ift.tt/2icDYXS