Critical vulnerabilitiies have been identified in Adobe Flash player.
Critical is Adobe's highest vulnerability rating and could when exploited allow malicious native-code to execute, potentially without a user being aware.
There are reports that one of the vulnerabilities is being exploited via a Flash file embedded in a Microsoft Word document (.doc file) or Microsoft Excel document (.xls file) delivered as an email attachment.
More information is available in Adobe's security bulletin 11-12, which also has links to update downloads.
Norman recommends that affected users update their Adobe product as soon as possible.