We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message
80,258 News Articles

Vulnerability found in Microsoft Excel

One attack reported already

A vulnerability has been found in Microsoft's Excel spreadsheet program, just a few days after the company fixed problems with several of its applications in its monthly patch distribution.

One customer reported an attack using the vulnerability, which comes from an email with a malicious Excel document attached, wrote Mike Reavey, Microsoft Security Program Manager, on the company's security blog.

The blog post did not give further details on what the malware does when downloaded. The blog post can be found here.

Reavey noted that the email application should prompt users to take care if they attempt to open the attachment. He cautioned against opening unsolicited documents, whoever they come from.

Microsoft has updated its own Windows Live Safety Center, a web-based antivirus and performance improvement service now in beta release, to detect documents attempting to exploit the vulnerability, and also shared the information with security partners, Reavey wrote.

"We've got the Office team engaged of course, and they are hard at work investigating the vulnerability," Reavey wrote.

On Tuesday, Microsoft issued 12 updates for 21 vulnerabilities, one of the company's largest patch handouts for applications including Internet Explorer, Outlook Express, Word, PowerPoint and Windows Media Player.

Observers noted the patches affected mostly client-side applications. Of the 21 vulnerabilities, 19 could have allowed a hacker to gain remote control over a computer and possibly corrupt or steal data.


IDG UK Sites

Windows 9 launch event live: Windows 9 launch live blog - find out first as the new Windows is...

IDG UK Sites

Windows 9 and the death of the OS as a must-have product

IDG UK Sites

Video trends: 4K is here โ€“ HDR video, VR and 3D audio is coming

IDG UK Sites

Best iPhone 6, iPhone 6 Plus deals: iPhone 6, iPhone 6 Plus tariffs, contracts and prices UK