The JavaScript for Acrobat API in Adobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 does not properly implement the (1) Privileged Context and (2) Safe Path restrictions for unspecified JavaScript methods, which allows remote attackers to create arbitrary files, and possibly execute arbitrary code, via the cPath parameter in a crafted PDF file. NOTE: some of these details are obtained from third party information.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5822
http://www.vupen.com/english/advisories/2009/2898
http://www.us-cert.gov/cas/techalerts/TA09-286B.html
http://www.securityfocus.com/bid/36664
http://www.securityfocus.com/bid/36638
http://www.kb.cert.org/vuls/id/257117
http://www.adobe.com/support/security/bulletins/apsb09-15.html