CVE-2006-6405: Softwin Bitdefender Mail Protection

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

BitDefender Mail Protection for SMB 2.0 allows remote attackers to 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

• Softwin Bitdefender Mail Protection: version 2.0 only

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