CVE-2008-3433: Speedbit Download Accelerator Plus

High severity, CVSS 7.5. EPSS: 1.8% chance of exploitation in the next 30 days.

SpeedBit Download Accelerator Plus (DAP) before 8.6.3.9 does not properly verify the authenticity of updates, which allows man-in-the-middle attackers to execute arbitrary code via a Trojan horse update, as demonstrated by evilgrade and DNS cache poisoning.

Affected products

• Speedbit Download Accelerator Plus: up to and including 8.6; version 8.0 only; version 8.1 only; version 8.5 only

Published 2008-08-01. Last modified 2026-06-16.