QUOTE
A potential vulnerability has been identified in Adobe Flash Player 10.0.12.36 and earlier that could allow an attacker who successfully exploits this potential vulnerability to take control of the affected system. A malicious SWF must be loaded in Flash Player by the user for an attacker to exploit this potential vulnerability. Additional vulnerabilities have been addressed in this update. Adobe recommends users update to the most current version of Flash Player available for their platform.
Full details at:
http://www.adobe.com/support/security/bull.../apsb09-01.html
To determine which version of Flash your browser is using visit
http://www.adobe.com/products/flash/about/
The latest Flash version 10 can be installed from:
http://www.adobe.com/go/getflash
Uncheck the box for Google toolbar (not required for flash player)