CVE-2020-1064
HighCVSS 7.5Exploitation Probability (EPSS)
Very high risk94th percentile - higher than 94% of all known CVEs
Summary
A remote code execution vulnerability in the MSHTML engine due to improper validation of input. An attacker could exploit it by tricking a user into editing a specially crafted file. The update modifies how MSHTML engine validates input.
Risk Assessment
Successful exploitation could allow an attacker to execute code with the current user's privileges, and if the user has administrative rights, to take full control of the system.
Recommendation
Install the latest Windows security updates to mitigate this vulnerability.
Original NVD description (English source)
A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input. An attacker could execute arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a HTML editing attack scenario, an attacker could trick a user into editing a specially crafted file that is designed to exploit the vulnerability. The security update addresses the vulnerability by modifying how MSHTML engine validates input.