The PXE Server (pxesrv.exe) in Acronis Snap Deploy 2.0.0.1076 and earlier allows remote attackers to cause a denial of service (crash) via an incomplete TFTP request, which triggers a NULL pointer dereference.
https://www.exploit-db.com/exploits/5228
https://exchange.xforce.ibmcloud.com/vulnerabilities/41075
http://www.vupen.com/english/advisories/2008/0814/references
http://www.securityfocus.com/archive/1/489358/100/0/threaded