CVE-2016-0099: Microsoft Windows Secondary Logon Service Privilege Escalation Vulnerability
The Secondary Logon Service 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 does not properly process request handles, which allows local users to gain privileges via a crafted application, aka "Secondary Logon Elevation of Privilege Vulnerability."
Published Mar 9, 2016 · Updated Jun 17, 2026
Required action
Apply updates per vendor instructions.
Advisory details
From the National Vulnerability Database. This product uses the NVD API but is not endorsed or certified by the NVD.
The Secondary Logon Service 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 does not properly process request handles, which allows local users to gain privileges via a crafted application, aka "Secondary Logon Elevation of Privilege Vulnerability."
References
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-032
- https://www.exploit-db.com/exploits/39574/
- https://www.exploit-db.com/exploits/39719/
- https://www.exploit-db.com/exploits/39809/
- https://www.exploit-db.com/exploits/40107/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-0099
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology
More Microsoft vulnerabilities
All Microsoft entriesCVE-2026-96951
Microsoft Windows Command Injection Vulnerability
high8.8ExploitedOct 13, 2026CVE-2026-81963
Microsoft Windows Link Following Vulnerability
high7.8ExploitedSep 8, 2026CVE-2026-85880
Microsoft Windows Heap-Based Buffer Overflow Vulnerability
high7.8ExploitedSep 8, 2026CVE-2026-65660
Microsoft SharePoint Code Injection Vulnerability
high8.8ExploitedAug 11, 2026CVE-2026-68820
Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
high7.0ExploitedAug 11, 2026CVE-2026-50522
Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
critical9.8ExploitedJul 14, 2026