it was an issue in any Android variant that featured autodial, I saw someone reporting it worked on CyanogenMod 7 for example and it also worked on some HTC devices
CM7 user here. Can confirm that it is vulnerable. Easily fixed by installing a second dialer so that you'll always get a prompt.
Also I can't find any info on whether cm7 supports USSD factory reset. Anybody aware?
it was an issue in any Android variant that featured autodial, I saw someone reporting it worked on CyanogenMod 7 for example and it also worked on some HTC devices