CVE-2005-2986: Ahnlab v3 Virusblock 2005

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

The v3flt2k.sys driver in AhnLab V3Pro 2004 Build 6.0.0.383, V3 VirusBlock 2005 Build 6.0.0.383, V3Net for Windows Server 6.0 Build 6.0.0.383 does not properly validate the source of the DeviceIoControl commands, which allows remote attackers to gain privileges.

Affected products

• Ahnlab v3 Virusblock 2005: version 6.0.0.383 only
• Ahnlab v3net: version 6.0.0.383 only
• Ahnlab v3pro 2004: version 6.0.0.383 only

Published 2005-09-20. Last modified 2026-06-16.