Junglewise Threat Intelligence

CVE-2019-0863: Microsoft Windows Error Reporting (WER) Privilege Escalation Vulnerability

CVE-2019-0863 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03

Technologies: Microsoft Windows 7, Microsoft Windows 10, Microsoft Windows, Microsoft Windows Server 2012 R2, Microsoft Windows Server 2012, Microsoft Windows Server 2008 R2, Microsoft Windows 8.1, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows Rt 8.1. Vendors: Microsoft.

Executive brief

An elevation of privilege vulnerability exists in Microsoft Windows Error Reporting (WER) due to improper file handling. A local attacker who successfully exploits this vulnerability could execute arbitrary code in kernel mode, gaining elevated system privileges.

Affected products

  • Microsoft Windows 7 Service Pack 1
  • Microsoft Windows 8.1
  • Microsoft Windows RT 8.1
  • Microsoft Windows 10 1507, 1607, 1703, 1709, 1803, 1809, 1903
  • Microsoft Windows Server 2008 R2 Service Pack 1
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016 1803, 1903
  • Microsoft Windows Server 2019

Timeline

  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: disclosed
  • 2022-05-03: other: CISA remediation due date

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