CVE-2021-26718: Kaspersky Internet Security

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

KIS for macOS in some use cases was vulnerable to AV bypass that potentially allowed an attacker to disable anti-virus protection.

Affected products

• Kaspersky Internet Security: before 21.1 (fixed in 21.1)

Published 2021-04-01. Last modified 2026-06-17.