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CISA KEV(1635d overdue)EPSS 5.2%top 7.5%

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

0
High
Vulnerability
Published: 11/03/2021 (11/03/2021, 00:00:00 UTC)
Last modified: 10/24/2026
Source: CISA KEV
Vendor/Project: Microsoft
Product: Windows

Description

CVE-2019-0863 is a privilege escalation vulnerability in Microsoft Windows Error Reporting (WER) that allows code execution in kernel mode due to improper file handling. This vulnerability has been exploited in the wild. It affects Microsoft Windows but specific affected versions are not stated. The severity is high given the potential for kernel-level code execution.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/24/2026, 09:10:29 UTC

Technical Analysis

Microsoft Windows Error Reporting (WER) contains a privilege escalation vulnerability identified as CVE-2019-0863. The flaw arises from the way WER handles files, enabling an attacker to execute code with kernel privileges. This vulnerability has been observed to be exploited in the wild, indicating active threat usage. No specific affected Windows versions or patch information is provided in the available data.

Potential Impact

Successful exploitation of this vulnerability allows an attacker to execute code in kernel mode, effectively escalating privileges on the affected Windows system. This can lead to full system compromise depending on the attacker's intent and capabilities.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until official fixes are confirmed, monitor vendor communications for updates and apply any recommended security updates promptly.

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Threat ID: 6adc6f613fe894698b2dda26

Added to database: 10/24/2026, 08:42:09 UTC

Last enriched: 10/24/2026, 09:10:29 UTC

Last updated: 10/24/2026, 09:27:23 UTC

Views: 3

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