All vulnerabilities
CVE-2019-0859

Microsoft Win32k Privilege Escalation Vulnerability

Microsoft Win32kOperating systems
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationExploited in the wildAdded to KEV 3 Nov 2021. Known ransomware useCISA KEV
Exploit odds (EPSS)4.15%Chance of exploitation activity in the next 30 days, higher than 90% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline3 May 2022Remediation due date for US federal agenciesCISA KEV
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

  1. 9 Apr 2019, 20:19 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

Description

Microsoft Win32k fails to properly handle objects in memory causing privilege escalation. Successful exploitation allows an attacker to run code in kernel mode.

Text from CVE List

Affected versions 38

  • Windowsaffected: 7 for 32-bit Systems Service Pack 1CVE List
  • Windowsaffected: 7 for x64-based Systems Service Pack 1CVE 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
  • Windows Serveraffected: 2008 R2 for x64-based Systems Service Pack 1 (Core installation)CVE List
  • Windows Serveraffected: 2008 R2 for Itanium-Based Systems Service Pack 1CVE List
  • Windows Serveraffected: 2008 R2 for x64-based Systems Service Pack 1CVE List
  • Windows Serveraffected: 2008 for 32-bit Systems Service Pack 2 (Core installation)CVE List
  • 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
  • Windows Serveraffected: 2008 for Itanium-Based Systems Service Pack 2CVE List
  • Windows Serveraffected: 2008 for 32-bit Systems Service Pack 2CVE List
  • Windows Serveraffected: 2008 for x64-based Systems Service Pack 2CVE List
  • Windows Serveraffected: 2008 for x64-based Systems Service Pack 2 (Core installation)CVE List

References 3