I don't believe this will impact AAPL's price though. Shareholders and ad sellers are the only "customers"/"users" Cook's Apple is interested in and works for and news of this vulnerability will be shushed or soothed outside of tech forums.
Whether this will be somehow fixed (Dear Cook's Apple, consider starting with not keeping decryption keys together with encrypted data, duh) or ABI/compatibility will get broken, Apple's marketing will sell the news to shareholders as an improvement and the magic of capitalism will boost the price.