XP SP3 and Vista SP1 Hit with New Round of Critical Vulnerabilities

32-bit Windows XP SP2 and SP3, as well as 64-bit XP and XP SP2 are directly impacted by one Critical and one Important vulnerabilities. Indirectly, the operating systems could also be affected by attacks leveraging Critical holes in Internet Explorer 6 and 7 and Windows Media Player 11, and two Important flaws in outlook Express and Windows Messenger 4.7 and 5.1.

Users running Windows Vista RTM or SP1 are at risk from attacks designed to exploit a pair of Important vulnerabilities in the latest Windows client. Windows Mail, which is a default component of Windows Vista, also features security holes labeled with a severity rating of Important. However, the Critical vulnerabilities in IE7 and Windows Media Player 11, included by default into the operating system, can act as vectors for attacks.