Vulnerability Intelligence Report
Microsoft Win32k Privilege Escalation Vulnerability
CVE-2019-0803
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0685, CVE-2019-0859.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:45.23%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Windows | 7 for 32-bit Systems Service Pack 1 (affected), 7 for x64-based Systems Service Pack 1 (affected), 8.1 for 32-bit systems (affected), 8.1 for x64-based systems (affected), RT 8.1 (affected), 10 for 32-bit Systems (affected), 10 for x64-based Systems (affected), 10 Version 1607 for 32-bit Systems (affected), 10 Version 1607 for x64-based Systems (affected), 10 Version 1703 for 32-bit Systems (affected), 10 Version 1703 for x64-based Systems (affected), 10 Version 1709 for 32-bit Systems (affected), 10 Version 1709 for x64-based Systems (affected), 10 Version 1803 for 32-bit Systems (affected), 10 Version 1803 for x64-based Systems (affected), 10 Version 1803 for ARM64-based Systems (affected), 10 Version 1809 for 32-bit Systems (affected), 10 Version 1809 for x64-based Systems (affected), 10 Version 1809 for ARM64-based Systems (affected), 10 Version 1709 for ARM64-based Systems (affected) |
| Microsoft | Windows Server | 2008 R2 for x64-based Systems Service Pack 1 (Core installation) (affected), 2008 R2 for Itanium-Based Systems Service Pack 1 (affected), 2008 R2 for x64-based Systems Service Pack 1 (affected), 2008 for 32-bit Systems Service Pack 2 (Core installation) (affected), 2012 (affected), 2012 (Core installation) (affected), 2012 R2 (affected), 2012 R2 (Core installation) (affected), 2016 (affected), 2016 (Core installation) (affected), version 1709 (Core Installation) (affected), version 1803 (Core Installation) (affected), 2019 (affected), 2019 (Core installation) (affected), 2008 for Itanium-Based Systems Service Pack 2 (affected), 2008 for 32-bit Systems Service Pack 2 (affected), 2008 for x64-based Systems Service Pack 2 (affected), 2008 for x64-based Systems Service Pack 2 (Core installation) (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2018-11-26T00:00:00 |
| Published | 2019-04-09T20:15:28 |
| Last Updated | 2025-10-21T23:45:39 |
Community Chatter & Buzz