iOS 16.4.1, iPadOS 16.4.1, and macOS 13.3.1 Fix Actively Exploited Vulnerabilities

Apple today released iOS 16.4.1, iPadOS 16.4.1, and macOS 13.3.1 for the iPhone, iPad, and Mac, respectively, and it's a good idea to install them as soon as you can because all three updates include important security fixes.

iphone 14 red
According to Apple's security support documents for iOS and macOS, the new software includes fixes for two separate vulnerabilities, both of which were known by Apple to have been actively exploited in the wild.

The IOSurfaceAccelerator vulnerability could allow an app to execute arbitrary code with kernel privileges. Apple addressed the out-of-bounds write issue with improved input validation. The WebKit vulnerability could allow maliciously crafted web content to execute code. Apple fixed this issue with improved memory management.

Google's Threat Analysis Group and Amnesty International's Security Lab are credited with finding and reporting both issues to Apple.

Apple has also released a new Safari 16.4.1 update for macOS Monterey and macOS Big Sur, which likely addresses the WebKit vulnerability.

Related Forums: iOS 16, macOS Ventura

Popular Stories

iPhone 17 Pro 3 4ths Perspective Aluminum Camera Module 1

New iPhone 17 Pro Details: Brighter Display, Best Battery Life, and More

Wednesday September 3, 2025 5:33 am PDT by
Apple's iPhone 17 Pro and iPhone 17 Pro Max models will feature a number of significant display, thermal, and battery improvements, according to new late-stage rumors. According to the Weibo leaker known as "Instant Digital," the iPhone 17 Pro models will feature displays with higher brightness, making it more suitable for use in direct sunlight for prolonged periods. The iPhone 16 Pro and...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 and iPhone 17 Pro Prices Estimated Ahead of Apple Event Next Week

Tuesday September 2, 2025 1:50 pm PDT by
Just one week before Apple is expected to unveil the iPhone 17 series, an analyst has shared new price estimates for the devices. Here are J.P. Morgan analyst Samik Chatterjee's price estimates for the iPhone 17 series in the United States, according to 9to5Mac: Model Starting Price Model Starting Price Change iPhone 16 $799 iPhone 17 ...
iPhone 17 Pro Iridescent Feature 2

iPhone 17 Pro Clear Case Leak Reveals Three Key Changes

Sunday August 31, 2025 1:26 pm PDT by
Apple is expected to unveil the iPhone 17 series on Tuesday, September 9, and last-minute rumors about the devices continue to surface. The latest info comes from a leaker known as Majin Bu, who has shared alleged images of Apple's Clear Case for the iPhone 17 Pro and Pro Max, or at least replicas. Image Credit: @MajinBuOfficial The images show three alleged changes compared to Apple's iP...
iphone 16 pro ghost hand

iPhone 17 Pro: 5 Reasons Not to Upgrade This Year

Monday September 1, 2025 4:35 am PDT by
Apple will launch its new iPhone 17 series this month, and the iPhone 17 Pro models are expected to get a new design for the rear casing and the camera area. But more significant changes to the lineup are not expected until next year, when the iPhone 18 models arrive. If you're thinking of trading in your iPhone for this year's latest, consider the following features rumored to be coming to...
iPhone 17 Pro Dark Blue and Orange

iPhone 17 Release Date, Pre-Orders, and What to Expect

Thursday August 28, 2025 4:08 am PDT by
An iPhone 17 announcement is a dead cert for September 2025 – Apple has already sent out invites for an "Awe dropping" event on Tuesday, September 9 at the Apple Park campus in Cupertino, California. The timing follows Apple's trend of introducing new iPhone models annually in the fall. At the event, Apple is expected to unveil its new-generation iPhone 17, an all-new ultra-thin iPhone 17...
Apple Watch Ultra 2 Complications

Apple Watch Ultra 3 Coming Next Week: Eight Reasons to Upgrade

Thursday September 4, 2025 7:38 am PDT by
We're only days away from Apple's "Awe dropping" fall event scheduled to take place on Tuesday, September 9 – and along with the new iPhone 17 series, we're going to get a new version of the Apple Watch Ultra for the first time since 2023. By the time the Ultra 3 is unveiled, it will have been two years since the previous model arrived. The intervening period has left plenty of room for...

Top Rated Comments

xxray Avatar
32 months ago
Isn't this the whole purpose of that rapid security release feature that was new to iOS 16? Why aren't they using that instead?
Score: 24 Votes (Like | Disagree)
I7guy Avatar
32 months ago
Not gonna lie, gonna press that update button after this post.
Score: 22 Votes (Like | Disagree)
Jerry Fritschle Avatar
32 months ago

Good grief, nothing but actively exploited vulnerabilities these days. I’m ready to thin the herd of update-needy devices.
Enjoy your Etch-a-Sketch, then. :)
Score: 16 Votes (Like | Disagree)
snow755 Avatar
32 months ago

god, irritating as hell. They couldn't hold off on the 16.4 release to incorporate this security update into it? :mad:
just be happy they even updated at all lol remember back in the old days you where lucky that you got a IOS update once every 3 to 6 months
Score: 14 Votes (Like | Disagree)
Luap Avatar
32 months ago
Phew, what a relief! This one had been bugging me for literally nano seconds..

"Pushing hands emoji does not show skin tone variations"


;)
Score: 13 Votes (Like | Disagree)
Lounge vibes 05 Avatar
32 months ago

god, irritating as hell. They couldn't hold off on the 16.4 release to incorporate this security update into it? :mad:
Clearly not, or else they would’ve.
16.4 already included something like 2 1/2 dozen security fixes over 16.3.1, i’m sure if it was possible for them to include one more they would have.
Score: 12 Votes (Like | Disagree)