CVE-2006-3215: Clearswift Mailsweeper For Exchange

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

Clearswift MAILsweeper for SMTP before 4.3.20 and MAILsweeper for Exchange before 4.3.20 allows remote attackers to bypass the "text analysis", possibly bypassing SPAM and other filters, by sending an e-mail specifying a non-existent or unrecognized character set.

Affected products

• Clearswift Mailsweeper For Exchange: up to and including 4.3.19
• Clearswift Mailsweeper For Smtp: up to and including 4.3.19

Published 2006-06-24. Last modified 2026-06-16.