The emergency patch should be available from 6pm tonight, according to the software giant.
Computer users should watch out for security pop-ups on their computer or alternatively can visit the Microsoft Update site.
Security experts had advised consumers to switch to rival browsers while Microsoft repairs the flaw which affected Internet Explorer.
Microsoft’s Internet Explorer is the most widely used browser and as such is a prime target for hackers.
Protect your PC
Until the update is available, Microsoft encourages customers to follow the Protect Your Computer Guidance.
This guidance says users should activate the Automatic Update setting in Windows to ensure they receive the update as soon as it is available, enable their firewall, and ensure anti-virus and anti-spyware is up to date.
Customers can also take additional precautions by setting their Internet Explorer security settings to ‘High’ and using Internet Explorer 7 in ‘Protected Mode.’
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