| 19044 | FreeBSD : Courier mail services: remotely exploitable buffer overflows (98bd69c3-834b-11d8-a41f-0020ed76ef5a) | Nessus | FreeBSD Local Security Checks | high |
| 14457 | GLSA-200403-06 : Multiple remote buffer overflow vulnerabilities in Courier | Nessus | Gentoo Local Security Checks | high |
| 1210 | Courier IMAP Server < 3.0.7 Multiple Vulnerabilities | Nessus Network Monitor | IMAP Servers | high |
| 1206 | Courier < 0.45 Japanese Codeset Conversion Overflows | Nessus Network Monitor | SMTP Servers | critical |
| 12102 | Courier < 0.45 Multiple Remote Overflows | Nessus | SMTP problems | critical |
