Local Security Authority Subsystem Service (LSASS) in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windo…

published 2016-11-10 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-8096

cvss: 6.5; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 67.5%; EPSS 67.5% chance of exploitation in 30 days, percentile 99.3%
public exploits: 1; Exploit-DB

Local Security Authority Subsystem Service (LSASS) 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, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 allows remote authenticated users to cause a denial of service (system hang) via a crafted request, aka "Local Security Authority Subsystem Service Denial of Service Vulnerability."

Timeline

2016-11-09 First public exploit (EDB-40744)
2016-11-10 Published

Exploit prediction

67.45% chance of exploitation in the next 30 days, higher than 99.3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

EDB-40744 Microsoft Windows - LSASS SMB NTLM Exchange Null-Pointer Dereference (MS16-137) dos, 2016-11-09

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	6.8	AV:N/AC:L/Au:S/C:N/I:N/A:C

Classification

Weakness

CWE-284 Improper Access Control

References

exploit-db.com /exploits/40744/
exploit
docs.microsoft.com /en-us/security-updates/securitybulletins/2016/ms16-137
vendor-advisory
securitytracker.com /id/1037249
vdb-entry
securityfocus.com /bid/94040
vdb-entry

Sources

CVE List CVE-2016-7237
NVD CVE-2016-7237

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary