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CVE-2023-29336

Microsoft Win32K Privilege Escalation Vulnerability

Microsoft Win32kOperating systems
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationExploited in the wildAdded to KEV 9 May 2023CISA KEV
Exploit odds (EPSS)41.2%Chance of exploitation activity in the next 30 days, higher than 98% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.10240.19926Also 10.0.14393.5921, 6.0.6003.22070 and 3 moreCVE List
Federal deadline30 May 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

  • 10.0.10240.19926Windows 10 Version 1507CVE List
  • 10.0.14393.5921Windows 10 Version 1607CVE List
  • 10.0.14393.5921Windows Server 2016CVE List
  • 10.0.14393.5921Windows Server 2016 (Server Core installation)CVE List
  • 6.0.6003.22070Windows Server 2008 Service Pack 2CVE List
  • 6.0.6003.22070Windows Server 2008 Service Pack 2 (Server Core installation)CVE List
Show all 13 fixed versions
  • 6.0.6003.22070Windows Server 2008 Service Pack 2CVE List
  • 6.1.7601.26519Windows Server 2008 R2 Service Pack 1CVE List
  • 6.1.7601.26519Windows Server 2008 R2 Service Pack 1 (Server Core installation)CVE List
  • 6.2.9200.24266Windows Server 2012CVE List
  • 6.2.9200.24266Windows Server 2012 (Server Core installation)CVE List
  • 6.3.9600.20969Windows Server 2012 R2CVE List
  • 6.3.9600.20969Windows Server 2012 R2 (Server Core installation)CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 9 May 2023Added to CISA KEVCISA KEV
  2. 9 May 2023, 17:03 UTCPublishedCVE List
  3. 25 May 2025Exploit code publicExploit-DB

Public exploit code and templates 1

  • Local exploitMicrosoft Windows Server 2016 - Win32k Elevation of Privilege 25 May 2025Exploit-DB

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Microsoft Win32k contains an unspecified vulnerability that allows for privilege escalation up to SYSTEM privileges.

Text from CVE List

Affected versions 13

  • Windows 10 Version 1507affected: 10.0.10240.0 before 10.0.10240.19926CVE List
  • Windows 10 Version 1607affected: 10.0.14393.0 before 10.0.14393.5921CVE List
  • Windows Server 2016affected: 10.0.14393.0 before 10.0.14393.5921CVE List
  • Windows Server 2016 (Server Core installation)affected: 10.0.14393.0 before 10.0.14393.5921CVE List
  • Windows Server 2008 Service Pack 2affected: 6.0.6003.0 before 6.0.6003.22070CVE List
  • Windows Server 2008 Service Pack 2 (Server Core installation)affected: 6.0.6003.0 before 6.0.6003.22070CVE List
  • Windows Server 2008 Service Pack 2affected: 6.0.6003.0 before 6.0.6003.22070CVE List
  • Windows Server 2008 R2 Service Pack 1affected: 6.1.7601.0 before 6.1.7601.26519CVE List
  • Windows Server 2008 R2 Service Pack 1 (Server Core installation)affected: 6.1.7601.0 before 6.1.7601.26519CVE List
  • Windows Server 2012affected: 6.2.9200.0 before 6.2.9200.24266CVE List
  • Windows Server 2012 (Server Core installation)affected: 6.2.9200.0 before 6.2.9200.24266CVE List
  • Windows Server 2012 R2affected: 6.3.9600.0 before 6.3.9600.20969CVE List
  • Windows Server 2012 R2 (Server Core installation)affected: 6.3.9600.0 before 6.3.9600.20969CVE List

References 5