Buffer overflow in Pegasus Mail 3.11 allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long email message containing binary data.
Buffer overflow in Pegasus mail client 4.01 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long (1) To or (2) From headers.
Buffer overflow in Mercury Mail Transport System 4.01b allows remote attackers to execute arbitrary code via a long request to TCP port 105.