CVE-2009-4114: Kaspersky Anti-Virus

Medium severity, CVSS 4.9. EPSS: 0.8% chance of exploitation in the next 30 days.

kl1.sys in Kaspersky Anti-Virus 2010 9.0.0.463, and possibly other versions before 9.0.0.736, does not properly validate input to IOCTL 0x0022c008, which allows local users to cause a denial of service (system crash) via IOCTL requests using crafted kernel addresses that trigger memory corruption, possibly related to klavemu.kdl.

Affected products

• Kaspersky Kaspersky Anti-Virus: version 9.0.0.463 only

Published 2009-11-30. Last modified 2026-06-16.