Input validation error in Windows and Windows Server - CVE-2018-8420
Published: September 13, 2018
Vulnerability identifier: #VU14782
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2018-8420
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of user-supplied input within the Microsoft XML Core Services MSXML parser when processing malicious XML data. A remote attacker can create a specially crafted website, trick the victim into visiting it and execute arbitrary code on the target system.
How to mitigate CVE-2018-8420
Install updates from vendor's website.