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IMMUNITYSEC

CVE-2019-0863

7.8
HIGH
CVSS 3.1
EPSS 5.2% · 92nd pctCISA KEV · Exploited in the wild
2019-05-16Updated 2025-10-21KEV 2021-11-03
CISA Known Exploited Vulnerabilities

Microsoft Windows Error Reporting (WER) Privilege Escalation Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV
2021-11-03
Remediation due
2022-05-03

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2019-0863

Description

An elevation of privilege vulnerability exists in the way Windows Error Reporting (WER) handles files, aka 'Windows Error Reporting Elevation of Privilege Vulnerability'.

Severity

CVSS 3.1 · CISA7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impacttotal

Exploitation Context

as of October 17, 2026
All KEV statistics→
  • CISA added CVE-2019-0863 to the KEV catalog 902 days after its CVE record was published.
  • It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 83 added in 2021.
  • Its current EPSS score (5.2%) is higher than that of 19% of CISA KEV entries.

Affected Products

ProductAffected versions
Microsoft
Windows
7 for 32-bit Systems Service Pack 1
7 for x64-based Systems Service Pack 1
8.1 for 32-bit systems
8.1 for x64-based systems
RT 8.1
10 for 32-bit Systems
10 for x64-based Systems
10 Version 1607 for 32-bit Systems
10 Version 1607 for x64-based Systems
10 Version 1703 for 32-bit Systems
10 Version 1703 for x64-based Systems
10 Version 1709 for 32-bit Systems
10 Version 1709 for x64-based Systems
10 Version 1803 for 32-bit Systems
10 Version 1803 for x64-based Systems
10 Version 1803 for ARM64-based Systems
10 Version 1809 for 32-bit Systems
10 Version 1809 for x64-based Systems
10 Version 1809 for ARM64-based Systems
10 Version 1709 for ARM64-based Systems
Microsoft
Windows Server
2008 R2 for x64-based Systems Service Pack 1 (Core installation)
2008 R2 for Itanium-Based Systems Service Pack 1
2008 R2 for x64-based Systems Service Pack 1
2012
2012 (Core installation)
2012 R2
2012 R2 (Core installation)
2016
2016 (Core installation)
version 1803 (Core Installation)
2019
2019 (Core installation)
Microsoft
Windows 10 Version 1903 for 32-bit Systems
unspecified
Microsoft
Windows 10 Version 1903 for x64-based Systems
unspecified
Microsoft
Windows 10 Version 1903 for ARM64-based Systems
unspecified
Microsoft
Windows Server, version 1903 (Server Core installation)
unspecified

References

2 Links

Record Details

Published
2019-05-16
Last updated
2025-10-21
Assigner (CNA)
microsoft
Credited to
-

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.