CVE-2019-0797
Microsoft Win32k Privilege Escalation Vulnerability
Microsoft Win32kOperating systems
CVSS
7.8HighExploit odds (EPSS)1.87%Chance of exploitation activity in the next 30 days, higher than 79% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply updates per vendor instructions. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Description
Microsoft Win32k contains a privilege escalation vulnerability when the Win32k component fails to properly handle objects in memory. Successful exploitation allows an attacker to execute code in kernel mode.
Text from CVE List
Affected versions 28
- Windows Serveraffected: 2012CVE List
- Windows Serveraffected: 2012 (Core installation)CVE List
- Windows Serveraffected: 2012 R2CVE List
- Windows Serveraffected: 2012 R2 (Core installation)CVE List
- Windows Serveraffected: 2016CVE List
- Windows Serveraffected: 2016 (Core installation)CVE List
- Windows Serveraffected: version 1709 (Core Installation)CVE List
- Windows Serveraffected: version 1803 (Core Installation)CVE List
- Windows Serveraffected: 2019CVE List
- Windows Serveraffected: 2019 (Core installation)CVE List
- Windowsaffected: 8.1 for 32-bit systemsCVE List
- Windowsaffected: 8.1 for x64-based systemsCVE List
- Windowsaffected: RT 8.1CVE List
- Windowsaffected: 10 for 32-bit SystemsCVE List
- Windowsaffected: 10 for x64-based SystemsCVE List
- Windowsaffected: 10 Version 1607 for 32-bit SystemsCVE List
- Windowsaffected: 10 Version 1607 for x64-based SystemsCVE List
- Windowsaffected: 10 Version 1703 for 32-bit SystemsCVE List
- Windowsaffected: 10 Version 1703 for x64-based SystemsCVE List
- Windowsaffected: 10 Version 1709 for 32-bit SystemsCVE List
- Windowsaffected: 10 Version 1709 for x64-based SystemsCVE List
- Windowsaffected: 10 Version 1803 for 32-bit SystemsCVE List
- Windowsaffected: 10 Version 1803 for x64-based SystemsCVE List
- Windowsaffected: 10 Version 1803 for ARM64-based SystemsCVE List
- Windowsaffected: 10 Version 1809 for 32-bit SystemsCVE List
- Windowsaffected: 10 Version 1809 for x64-based SystemsCVE List
- Windowsaffected: 10 Version 1809 for ARM64-based SystemsCVE List
- Windowsaffected: 10 Version 1709 for ARM64-based SystemsCVE List