Security Experts:

Apple Ships Emergency Fixes for Under-Attack iOS Zero-Day

iOS Vulnerabilities Exploited in the Wild

Apple on Tuesday dropped emergency security patches for its flagship iOS and iPad OS platforms alongside a warning that hackers may already be exploiting three different security vulnerabilities.

The patches -- contained in iOS 14.4 and iPadOS 14.4 -- are currently being pushed to mobile users via the automatic updating mechanism.  

Apple did not provide technical details of the vulnerabilities or the in-the-wild attacks, except to identify the flaws in the Kernel and in WebKit, the open-source web browser engine used in Safari, Mail, AppStore and a range of MacOS and iOS apps.

Here are the bare-bones details from Apple:

CVE-2021-1782 (Kernel)  -- Impact: A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited.  Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation).  Anonymously reported.

CVE-2021-1871 and CVE-2021-1870 (WebKit) --  Impact: A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.  Available for: iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation).   Reported by anonymous researchers.

Apple has promised additional details will be available soon.

Related: Zerodium Expects iOS Exploit Prices to Drop as It Announces Surplus

Related: Zero-Day Vulnerabilities in iOS Mail App Exploited in Targeted Attacks

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Ryan Naraine is Editor-at-Large at SecurityWeek and host of the popular Security Conversations podcast series. He is a journalist and cybersecurity strategist with more than 20 years experience covering IT security and technology trends. Ryan has built security engagement programs at major global brands, including Intel Corp., Bishop Fox and Kaspersky GReAT. He is a co-founder of Threatpost and the global SAS conference series. Ryan's career as a journalist includes bylines at major technology publications including Ziff Davis eWEEK, CBS Interactive's ZDNet, PCMag and PC World. Ryan is a director of the Security Tinkerers non-profit, and a regular speaker at security conferences around the world. Follow Ryan on Twitter @ryanaraine.