Host is installed with Kaspersky Anti-Virus 2019 before Patch I and Patch J or Kaspersky Anti-Virus 2020 before Patch E and Patch F and is prone to an improper input validation vulnerability. A flaw is present in the application, which fails to properly handle the web protection component due to a bug in its implementation. Successful exploitation allows an attacker to remotely disable such product's security features as private browsing and anti-banner.