It's possible other apps are getting exploits, but those are less valuable since they're not installed by default. As it stands, the most recently published in

It's possible other apps are getting exploits, but those are less valuable since they're not installed by default. As it stands, the most recently published information about the exploits were in the image parsers. So any app that used the default image parsers may have been affected, but might not have the same ability to escalate the exploit via other exploits. Plus you get back to the lack of ubiquity of the app, and the difficulty in targeting.