CVE-2021-35053: Kaspersky Endpoint Security

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

Possible system denial of service in case of arbitrary changing Firefox browser parameters. An attacker could change specific Firefox browser parameters file in a certain way and then reboot the system to make the system unbootable.

Affected products

• Kaspersky Endpoint Security: from 11.1.0, up to and including 11.6.0

Published 2021-11-03. Last modified 2026-06-17.