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CVE-2019-0803

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k...

Basic Information

CVE State
PUBLISHED
Reserved Date
November 26, 2018
Published Date
April 09, 2019
Last Updated
October 21, 2025
Vendor
Microsoft
Product
Windows, Windows Server
Description
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.
Tags
windows cisa microsoft

CVSS Scores

CVSS v3.1

7.8 - HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

SSVC Information

Exploitation
active
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2021-11-03 00:00:00 UTC) Source

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0803 http://packetstormsecurity.com/files/153034/Microsoft-Windows-Win32k-Privilege-Escalation.html

Known Exploited Vulnerability Information

Source Added Date
CISA 2021-11-03 00:00:00 UTC
CISA 2021-11-03 00:00:00 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

ExpLife0011/CVE-2019-0803

Type: github • Created: 2019-05-17 11:05:22 UTC • Stars: 81

Win32k Elevation of Privilege Poc

Iamgublin/CVE-2019-0803

Type: github • Created: 2019-05-17 09:37:05 UTC • Stars: 0

Win32k Elevation of Privilege Poc

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Added to KEVIntel