CVE-2015-4278
Cisco Email Security Appliance (ESA) devices with software 8.5.6-106 and 9.5.0-201 allow remote attackers to cause a denial of service (per-domain e-mail reception outage) by placing malformed DMARC policy data in DNS TXT records for a domain, aka Bug ID CSCuv14806.
Date published : 2015-07-16
http://tools.cisco.com/security/center/viewAlert.x?alertId=39940