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CVE-2019-0863

HighPublished

Microsoft Windows Error Reporting (WER) Privilege Escalation Vulnerability

Published: May 16, 2019
Updated: Oct 21, 2025
Assigning CNA: microsoft
Evidence observed: May 22, 2019

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

5.2%

Low · next 30 days

Percentile: 92.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

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

Sources

Microsoft Windows (x86/x64) - 'Error Reporting' Discretionary Access Control List / Local Privilege EscalationExploit
SandboxEscaper · windows · May 22, 2019

Responsible use

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