Unspecified vulnerability in the Download Manager in Adobe Reader 8.1.2 and earlier on Windows allows remote attackers to change Internet Security options on a client machine via unknown vectors.
http://www.vupen.com/english/advisories/2008/3001
http://www.us-cert.gov/cas/techalerts/TA08-309A.html
http://www.securitytracker.com/id?1021140
http://www.adobe.com/support/security/bulletins/apsb08-19.html
http://secunia.com/advisories/32872
http://lists.opensuse.org/opensuse-security-announce/2008-11/msg00002.html