Junglewise Threat Intelligence

CVE-2018-8440: Microsoft Windows Privilege Escalation Vulnerability

CVE-2018-8440 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-03-28

Technologies: Microsoft Windows Server 2016, Microsoft Windows 7, Microsoft Windows, Microsoft Windows 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows 10, Microsoft Windows Rt 8.1. Vendors: Microsoft.

Executive brief

An elevation of privilege vulnerability exists in Microsoft Windows when the system improperly handles calls to Advanced Local Procedure Call (ALPC). An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system.

Affected products

  • Microsoft Windows 7 Service Pack 1
  • Microsoft Windows 8.1
  • Microsoft Windows RT 8.1
  • Microsoft Windows 10 1607, 1703, 1709, 1803
  • Microsoft Windows Server 2008 Service Pack 2, R2 Service Pack 1
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016 1709, 1803

Timeline

  • 2018-08-27: disclosed: Public disclosure of exploit code (0patch reference)
  • 2018-09-11: patched: Microsoft released security updates
  • 2022-03-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-03-28: exploited: Confirmed exploited in the wild per CISA KEV entry date

Related threats