CVE-2006-2869: Alwil Avast Antivirus

High severity, CVSS 10.0. EPSS: 1.7% chance of exploitation in the next 30 days.

Unspecified vulnerability in the CHM unpacker in avast! before 4.7.844 has unknown impact and remote attack vectors.

Affected products

• Alwil Avast Antivirus: version 4.0 only; version 4.6 only; version 4.6.603 only; version 4.6.652 only; version 4.6.655 only; version 4.6.665 only; …

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