Adobe's Security Bulletin states:
"Adobe is aware of reports that CVE-2013-0633 is being exploited in the wild in targeted attacks designed to trick the user into opening a Microsoft Word document delivered as an email attachment which contains malicious Flash (SWF) content. The exploit for CVE-2013-0633 targets the ActiveX version of Flash Player on Windows.
"Adobe is also aware of reports that CVE-2013-0634 is being exploited in the wild in attacks delivered via malicious Flash (SWF) content hosted on websites that target Flash Player in Firefox or Safari on the Macintosh platform, as well as attacks designed to trick Windows users into opening a Microsoft Word document delivered as an email attachment which contains malicious Flash (SWF) content."Adobe has categorized the update to Windows and Macintosh systems as Priority 1 Rating, which means:
For information about how to verify which version of Flash Player is installed on your system, please visit How can I check that my Flash Player version is up to date?.