Stack-based buffer overflow in the OutputDebugString function for Adobe Acrobat Reader 5.1 allows remote attackers to execute arbitrary code via a PDF document with XML Forms Data Format (XFDF) data.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15384
http://www.securityfocus.com/bid/9802
http://www.nextgenss.com/advisories/adobexfdf.txt
http://marc.info/?l=bugtraq&m=107842545022724&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2004-March/018227.html