Microsoft releases critical Internet Explorer patch

Microsoft has released its April security patches, addressing critical vulnerabilities in IE and Windows.

Microsoft has released its security software patches for April, addressing a bug in the Internet Explorer (IE) browser that hackers had been exploiting for several weeks.

As expected, the company released five patches, called updates in Microsoft parlance, addressing a number of critical vulnerabilities in IE and the Windows operating system. Microsoft also released an update for Outlook Express, rated important, and a fix for Windows FrontPage Server Extensions and SharePoint Team Services 2002, rated moderate."

In Microsoft's rating system the most serious vulnerabilities are tagged as critical, meaning they could allow unauthorised software to be installed without user action. The critical designation is followed by important and moderate ratings.

The most anticipated of this month's update is the MS06-013 patch, which fixes several IE bugs including the "create TextRange ()" vulnerability reported last month. Hackers had been exploiting this problem by installing unauthorised software on PCs by tricking users into visiting sites that took advantage of the bug.

Security researchers had reported four separate IE vulnerabilities prior to the release of the MS06-13 update, but Microsoft said it has addressed a total of 10 issues - including address spoofing and cross-site scripting vulnerabilities - with the patch.

The IE update also will include changes to the way that IE handles ActiveX controls, meaning that on some websites, users may now have to click through some extra steps when using dynamic content like Flash animation. These changes come as the result of a $US521 million judgment against Microsoft in a patent lawsuit brought by Eolas Technologies and the University of California.

On Tuesday, Microsoft also patched a similarly critical vulnerability in the way Windows Explorer handles Component Object Model objects. Attackers could take over a system by tricking users into visiting a website that would then connect them to a remote file server.

"This remote file server could then cause Windows Explorer to fail in a way that could allow code execution," Microsoft said.

This vulnerability affects all supported versions of Windows, Microsoft said. (

The third critical fix in April's updates addresses vulnerability in an ActiveX control, called RDS.Dataspace, which is distributed with the Microsoft Data Access Components. This software is included with the Windows operating system and is typically used by database software.

The RDS.Dataspace component problem is rated critical for Windows 98, Windows 2000 and Windows XP. It is considered a moderate risk for Windows Server 2003 users. (

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Robert McMillan

IDG News Service
Show Comments



Victorinox Werks Professional Executive 17 Laptop Case

Learn more >

Sansai 6-Outlet Power Board + 4-Port USB Charging Station

Learn more >



Back To Business Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?