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Microsoft issues largest security update ever

Microsoft releases highest number of security bulletins to fix 34 vulnerabilities

Microsoft issues largest security update ever
Microsoft classifies four of the threats as high priority.

Microsoft has issued its largest ever security update, to address a range of vulnerabilities in applications.

The latest release as part of Microsoft's ‘Patch Tuesday' monthly security update, includes 14 bulletins to address 34 vulnerabilities, the largest ever number of bulletins released at one time.

The bulletins are also ranked high on Microsoft's security scale, with eight bulletins rated as 'critical' and six as 'important'.

Affected applications include Microsoft Office, Microsoft Windows, Microsoft Internet Explorer, Microsoft Silverlight, Microsoft XML Core Services and Server Message Block, and the vulnerabilities include issues such as Outlook's preview pane and video codecs in Silverlight.

Microsoft has already released an ‘out of band' bulletin this month, meaning it was judged to be too important to wait for the schedule update, to fix a vulnerability in .LNK shortcut files.

Security experts stressed the need for IT administrators to prioritize updates, to ensure the most urgent fixes are addressed first. Microsoft has advised that it considers four of the either critical bulletins to be high priority, although no exploits for these vulnerabilities have been detected in the wild as of yet.

For more information see the Microsoft Security Response Centre.

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