A security firm has found a pair of security bugs in Microsoft's Windows Mobile which, if exploited, could crash phones and other devices running the software.

The vulnerabilities lie in Windows Mobile Internet Explorer and Windows Mobile Pictures and Video, Trend Micro, a Tokyo-based security vendor, said in a pair of security alerts. Viewing a rigged Web page or malicious JPEG image file on a Windows Mobile device will cause it to fail, according to Trend Micro.

"Both of these vulnerabilities are potential denial-of-service factors," Todd Thiemann, director of device security marketing at Trend Micro, said in an interview on Tuesday. "What we're seeing over time is an uptick in the threats against smartphones, particularly those running Symbian and Windows Mobile."

Trend Micro has told Microsoft about the problems and has not publicly shared the vulnerability details. "The sky isn't falling. Nobody out there is aware of this," Thiemann said. The company doesn't expect any imminent attacks exploiting the problems, he said.

Microsoft is aware of the issues and is investigating them, a company representative said on Wednesday. If needed, the software maker will provide an update to hardware makers for distribution to people who use the Windows Mobile devices, it said. The problems affect Windows Mobile 2003 and Windows Mobile 5.0, according to Trend Micro.

While the number of threats to phones today is low, security experts and analysts agree that situation is likely to change with the advent of smartphones running common operating systems. Security companies, including Trend Micro, are hawking software to shield phones against possible attacks.

Another Word zero-day bug
In addition to the Windows Mobile issues, Microsoft is also investigating a report of yet another vulnerability in Word. Symantec and the French Security Incident Response Team, or FrSirt, say they have spotted a fifth zero-day flaw in the word-processing application. Microsoft, however, says the problem was previously known.

"Microsoft's initial investigation shows that this is not a new vulnerability but a duplicate of an already known public issue," the Microsoft representative said.

The newest problem allows an attacker to hijack systems running Word 2003, Symantec said in an alert on Tuesday. The company has advised people to make sure their security software is up to date and urges caution when opening Word documents.

Like this article? Click below to send it to your mobile for free!

Be the first to comment on this article!

  • Leave a comment

All fields marked with * are required

What do you think

Your e-mail will not be displayed

You must read and type the 6 chars within 0..9 and A..F

You must read and type the 6 chars.


  • Vodafone 3G upgrade delayed to 2009

  • Oi!: Rock out with your tech out

  • 50 significant moments from internet history

  • Megaphone #1: Your monthly dose of mobile

  • OLED, 3D displaying the future

  • LG Renoir 8-megapixel camera phone: Photos

  • Oi!: Moko wants you!

  • Use the "force" to control your mobile phone

  • Vertu's bejewelled phones mark a big birthday

More articles »

Find the right mobile phone

Brand
  • Multiple options can be selected

    Recycle your old mobiles
    • ASUS A696

      ASUS A696

      This slimline, brushed metal phone-less PDA packs GPS and Bluetooth, but somehow manages to miss out on Windows Mobile 6.

    • Vodafone 1210

      Vodafone 1210

      Want a Blackberry, but can't stretch the business budget to afford one? Vodafone's 1210 might suit your needs, but you'll need to put up with a lot of compromises along the way.

    • ASUS P735

      ASUS P735

      A handheld with good features for the business user, but those who want the latest HSDPA and GPS options may have to look elsewhere.

    • Mio Digiwalker P350

      Mio Digiwalker P350

      Mio's Digiwalker P350 isn't a stunning PDA. It isn't a stunning GPS, either. It's still a good unit, however --- read our review to find out why.

    • O2 Xda Stealth

      O2 Xda Stealth

      O2's Xda Stealth looks a lot like a regular slider phone, until you flick it open and notice the Windows Mobile 5.0 operating system, push e-mail capabilities and built-in Wi-Fi support.

    More reviews »

    Membership benefits

    Manage and receive subscriptions

    Manage and receive subscriptions

    Choose to receive an e-mail update containing our best articles either daily, weekly or monthly. Sign up for a free CNET.com.au membership now!