Yesterday, Adobe announced a new version of Flash that includes fixes for several security holes in earlier versions. Anyone who uses Flash to view web-based video, which includes anyone who uses YouTube, should install the latest version of Flash as soon as possible.
The latest version of Flash for Windows is 11.5.502.110. Adobe also made available updates for older versions of Flash that address the same security vulnerabilities, but we recommend updating to the latest version.
A new version of Google Chrome, also announced yesterday, includes these security fixes. A similar patch for Internet Explorer 10 in Windows 8 was made available by Microsoft.
These updates resolve buffer overflow vulnerabilities that could lead to code execution, memory corruption vulnerabilities that could lead to code execution, and a security bypass vulnerability that could lead to code execution.