Vulnerability Intelligence Report
Microsoft Windows Secondary Logon Service Privilege Escalation Vulnerability
CVE-2016-0099
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."
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:37.16%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-120 ↗CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| microsoft | windows_10_1507 | all |
| microsoft | windows_10_1511 | all |
| microsoft | windows_7 | all |
| microsoft | windows_8.1 | all |
| microsoft | windows_server_2008 | r2 |
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_vista | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2015-12-04T00:00:00 |
| Published | 2016-03-09T11:00:00 |
| Patch Date | 2016-03-08 |
| Last Updated | 2025-10-21T23:55:54 |
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