CVE-2006-6409: F-Secure Anti-Virus

High severity, CVSS 10.0. EPSS: 3.7% chance of exploitation in the next 30 days.

F-Secure Anti-Virus for Linux Gateways 4.65 allows remote attackers to cause a denial of service (possibly fatal scan error), and possibly bypass virus detection, by inserting invalid characters into base64 encoded content in a multipart/mixed MIME file, as demonstrated with the EICAR test file.

Affected products

• F-Secure F-Secure Anti-Virus: version 4.65 only

Published 2006-12-10. Last modified 2026-06-16.