Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.
https://www.exploit-db.com/exploits/4294
https://exchange.xforce.ibmcloud.com/vulnerabilities/36299
https://exchange.xforce.ibmcloud.com/vulnerabilities/36117
http://www.vupen.com/english/advisories/2007/2918
http://www.securitytracker.com/id?1018587
http://www.pmail.com/m32_451.htm
http://secunia.com/advisories/26519
http://archives.neohapsis.com/archives/fulldisclosure/2007-08/0341.html