CVE-2006-3840: Iss Blackice Pc Protection

Medium severity, CVSS 5.0. EPSS: 2.4% chance of exploitation in the next 30 days.

The SMB Mailslot parsing functionality in PAM in multiple ISS products with XPU (24.39/1.78/epj/x.x.x.1780), including Proventia A, G, M, Server, and Desktop, BlackICE PC and Server Protection 3.6, and RealSecure 7.0, allows remote attackers to cause a denial of service (infinite loop) via a crafted SMB packet that is not properly handled by the SMB_Mailslot_Heap_Overflow decode.

Affected products

• Iss Blackice Pc Protection: version 3.6cpk only
• Iss Blackice Server Protection: version 3.6cpk only
• Iss Proventia A Series Xpu: any version
• Iss Proventia Desktop: version 8.0.675.1790 only; version 8.0.812.1790 only
• Iss Proventia G Series Xpu: any version
• Iss Proventia M Series Xpu: any version
• Iss Proventia Server: version 1.0.914.1880 only
• Iss Realsecure Desktop: version 7.0epk only
• Iss Realsecure Network: version 7.0 only
• Iss Realsecure Server Sensor: version 7.0 only

Published 2006-07-27. Last modified 2026-06-16.