Grisoft AVG Anti-Virus before 7.1.407 allows remote attackers to cause a denial of service (crash) via a crafted DOC file that triggers a divide-by-zero error. NOTE: some of these details are obtained from third party information.
https://exchange.xforce.ibmcloud.com/vulnerabilities/30247
https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-5922
http://www.vupen.com/english/advisories/2006/4498
http://www.grisoft.com/doc/36365/lng/us/tpl/tpl01