#VU18445 Input validation error in Windows and Windows Server - CVE-2019-0863
Published: May 14, 2019 / Updated: November 20, 2020
Vulnerability identifier: #VU18445
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2019-0863
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Windows
Windows Server
Windows
Windows Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the way Windows Error Reporting (WER) handles files. A local user can create a specially crafted WER file and execute arbitrary code on the system in kernel mode.
Note: this vulnerability is being actively exploited in the wild.
Remediation
Install updates from vendor's website.