Microsoft has released a series of new updates for closing security gaps this month as part of its monthly Patch Day event.
According to Germany's BSI Federal Office for Information Security, the security gaps were present in Windows system components responsible for rendering graphics. Other applications included Windows Media Player, Windows Media Encoder and Microsoft Office.
Hackers could have taken advantage of those gaps to introduce damaging codes, either by getting computer users to open manipulated data or to visit certain websites.
The BSI recommends downloading and installing the patches from Microsoft at http://windowsupdate.microsoft.com.

Shares fell 2.1 per cent Friday on the Seoul stock exchange on general recession fears. South Korea's won dropped against the dollar.
When the Spirit rover landed on Mars five years ago, no one expected it or its sister rover Opportunity to make it to their first birthdays, let alone their fifth.
Amelie Mauresmo fell victim to a leg injury after less than half an hour on court Friday to hand over a 4-0 victory which put French compatriot Marion Bartoli into the final of the Brisbane International.
Mumbai-based movie Slumdog Millionaire won five prizes Thursday night at the Critics Choice Awards, cementing its position as a surprise favourite just as the Oscar season moves into high gear.
After the Taipei Zoo received two giant pandas from China, another Taiwan zoo said Friday it is seeking to receive a pair of pandas from China.