Fonts break after Windows security patch KB2753842

UPDATE: The security update is now fixed and everything works fine.

We have seen many problems during the last years with updates and patches but this one is really strange. After the security update KB2753842 was applied on 12/12/12, programs that use the vector “side” of fonts cannot show characters of specific fonts that used to work perfectly. You can see the font in the font list, you can select it but the font doesn’t work. This happens with programs like CorelDraw, Adobe Flash, Expression Design etc. Word, InDesign and programs that use the font as bitmap work fine.

Microsoft identified an exploit with the GetGlyphOutline() API call, made a change and everything collapsed. The 12/12/12 date would leave an entry in computer history… So, we are waiting for a fix on this. If you just remove the security update and reboot, things are back to normal (but we are still open to a possible hack). The problem appears on Windows XP, Vista, 7, 8, Server 2003, 2008, R2, 2012 (even Windows 8 RT) and some OpenType or TrueType fonts (not all of them).

Instructions to remove the update:

  1. Click on the “Start” button, click on “Control Panel” and then double-click on the “Add/Remove Programs” icon.
  2. Click the “Show Updates” check box at the top of the window and wait for the list of installed updates to appear.
  3. Click on the update you wish to remove, click the “Remove” button and then restart your computer. The update is now successfully removed from your computer.

Don’t forget to change the automatic updates to manual otherwise it will be reinstalled. As soon as there is a fix for this issue, you can change updating to auto.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s