In its second out-of-band update (meaning delivered outside of the regular Patch Tuesday schedule) in the past three months, Microsoft said today that it’s planning to issue an emergency security update tomorrow. The update will patch a zero-day vulnerability in Internet Explorer 6 and 7 that has been used to launch drive-by attacks.

Check Microsoft’s ‘Security Bulletin Advance Notification’ for full details.

Remember the 'F1 Key bug' - an unpatched vulnerability that could affect Internet Explorer - that we warned you about at the start of the month? A fix for this and another outstanding IE vulnerability may also be included in tomorrow’s cumulative update; read ComputerWorld’s recent article to learn more.