All vulnerabilities
CVE-2018-8120

Microsoft Win32k Privilege Escalation Vulnerability

Microsoft Win32kOperating systems
Open in ThreatlineRecord JSON
CVSS
7.0High
ExploitationExploited in the wildAdded to KEV 15 Mar 2022. Known ransomware useCISA KEV
Exploit odds (EPSS)73.3%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline5 Apr 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 May 2018Exploit code publicMetasploit
  2. 9 May 2018, 19:00 UTCPublishedCVE List
  3. 15 Mar 2022Added to CISA KEVCISA KEV

Public exploit code and templates 3

  • Exploit moduleWindows SetImeInfoEx Win32k NULL Pointer Dereference 9 May 2018Metasploit
  • Local exploitMicrosoft Windows - SetImeInfoEx Win32k NULL Pointer Dereference (Metasploit) 22 Oct 2018Exploit-DB
  • Local exploitMicrosoft Windows - SetImeInfoEx Win32k NULL Pointer Dereference (Metasploit) 22 Oct 2018Exploit-DB

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

Description

A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory.

Text from CVE List

Affected versions 10

  • Windows Server 2008affected: 32-bit Systems Service Pack 2CVE List
  • Windows Server 2008affected: 32-bit Systems Service Pack 2 (Server Core installation)CVE List
  • Windows Server 2008affected: Itanium-Based Systems Service Pack 2CVE List
  • Windows Server 2008affected: x64-based Systems Service Pack 2CVE List
  • Windows Server 2008affected: x64-based Systems Service Pack 2 (Server Core installation)CVE List
  • Windows 7affected: 32-bit Systems Service Pack 1CVE List
  • Windows 7affected: x64-based Systems Service Pack 1CVE List
  • Windows Server 2008 R2affected: Itanium-Based Systems Service Pack 1CVE List
  • Windows Server 2008 R2affected: x64-based Systems Service Pack 1CVE List
  • Windows Server 2008 R2affected: x64-based Systems Service Pack 1 (Server Core installation)CVE List

References 4