CVE-2009-4452: Kaspersky Lab Kaspersky Anti-Virus

Medium severity, CVSS 6.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Kaspersky Anti-Virus 5.0 (5.0.712); Antivirus Personal 5.0.x; Anti-Virus 6.0 (6.0.3.837), 7 (7.0.1.325), 2009 (8.0.0.x), and 2010 (9.0.0.463); and Internet Security 7 (7.0.1.325), 2009 (8.0.0.x), and 2010 (9.0.0.463); use weak permissions (Everyone:Full Control) for the BASES directory, which allows local users to gain SYSTEM privileges by replacing an executable or DLL with a Trojan horse.

Affected products

• Kaspersky Lab Kaspersky Anti-Virus: version 5.0.712 only; version 6.0.3.837 only; version 7.0.1.325 only
• Kaspersky Lab Kaspersky Anti-Virus 2009: version 8.0.0.454 only
• Kaspersky Lab Kaspersky Anti-Virus 2010: version 9.0.0.463 only
• Kaspersky Lab Kaspersky Anti-Virus Personal: version 5.0 only; version 5.0.227 only; version 5.0.228 only; version 5.0.325 only
• Kaspersky Lab Kaspersky Internet Security: version 7.0.1.325 only
• Kaspersky Lab Kaspersky Internet Security 2009: version 8.0.0.506 only
• Kaspersky Lab Kaspersky Internet Security 2010: version 9.0.0.463 only

Published 2009-12-29. Last modified 2026-06-16.