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.
| Software | From | Fixed in |
|---|---|---|
| clearswift / mailsweeper_for_smtp | - | 4.3.19.x |
| clearswift / mailsweeper_for_exchange | - | 4.3.19.x |