PSA: Make Sure to Update, iOS 16.5, iPadOS 16.5, and macOS 13.4 Address These Three Actively Exploited Vulnerabilities - MacRumors
Skip to Content

PSA: Make Sure to Update, iOS 16.5, iPadOS 16.5, and macOS 13.4 Address These Three Actively Exploited Vulnerabilities

The iOS 16.5, iPadOS 16.5, and macOS 13.4 updates that Apple released today address vulnerabilities that are known to have been exploited by bad actors, which means it is important to update to the new operating systems as soon as you can.

bug security vulnerability issue fix larry
According to Apple's security support documents for iOS and macOS, the updates fix three WebKit vulnerabilities. Two of these issues were addressed in the prior iOS 16.4.1 and macOS 13.3.1 Rapid Security Response updates and are not an issue if you updated, but a third vulnerability is still active until you install the latest updates.

The WebKit security flaw could allow an attacker to break out of the Web Content sandbox, an issue that Apple fixed with improved bounds checks. Apple says that it is aware of a report that this issue may have been actively exploited.

The other two WebKit vulnerabilities were related to processing maliciously crafted web content that could allow for the disclosure of sensitive information or arbitrary code execution.

Related Forums: iOS 16, macOS Ventura

Popular Stories

imac video apple feature

Apple Released Yet Another New Product Today

Friday March 20, 2026 2:39 pm PDT by
Apple has unveiled a whopping nine new products so far this March, including an iPhone 17e, iPad Air models with the M4 chip, MacBook Air models with the M5 chip, MacBook Pro models with M5 Pro and M5 Max chips, the all-new MacBook Neo, an updated Studio Display, a higher-end Studio Display XDR, AirPods Max 2, and now the Nike Powerbeats Pro 2. iPhone 17e features the same overall design as...
ios 26 4 pastel

iOS 26.4: Top 10 New Features Coming to Your iPhone

Friday March 20, 2026 2:44 pm PDT by
iOS 26.4 isn't the major update with new Siri features that we hoped for, but there are some useful quality of life improvements, and a little bit of fun with an AI playlist generator and new emoji characters. Playlist Playground - Apple Music has a Playlist Playground option that lets you generate playlists from text-based descriptions. You can include moods, feelings, activities, or...
HomePod mini and Apple TV Sage

New Apple TV and HomePod Mini Remain 'Ready' to Launch

Sunday March 22, 2026 6:33 am PDT by
Apple has unveiled nine new products this month, but the wait continues for the next-generation Apple TV 4K and HomePod mini models. In his Power On newsletter today, Bloomberg's Mark Gurman said new versions of the Apple TV and HomePod mini have been "ready" since last year, but he reiterated that Apple has held off on releasing them until the more personalized version of Siri and other...

Top Rated Comments

TheYayAreaLiving šŸŽ—ļø Avatar
37 months ago
Ok, this is very scary! Did anyone catch this under Siri? šŸ˜µā€šŸ’«šŸ„“šŸ¤„



Attachment Image
Score: 8 Votes (Like | Disagree)
37 months ago

Ok, this is very scary! Did anyone catch this under Siri? šŸ˜µā€šŸ’«šŸ„“šŸ¤„


If someone has physical access to your machine, you may have some extra things to worry about
Score: 5 Votes (Like | Disagree)
LV426 Avatar
37 months ago

This update fixed a lot of very serious bugs...

I'm shocked that they were there in the first place.
I’m not shocked in the slightest. iOS is riddled with bugs and there are many more vulnerabilities waiting to be found. Like most software on the planet.
Score: 5 Votes (Like | Disagree)
AppleTO Avatar
37 months ago

Are old versions of iOS and macOS affected?
I wish they would publish this kind of information as well. It would be nice to know if legacy systems may be affected as well.
Score: 5 Votes (Like | Disagree)
37 months ago

Isn't it funny how the more macOS gets more and more locked down (sorry, tamper proof) in the name of security, the more vulnerabilities crop up that are being exploited in the wild months before a patch comes out?
I'm not sure a correlation can be made

If anything, I'd say that macs gaining market share is the reason of such exploits being discovered and new malware created
Score: 4 Votes (Like | Disagree)
37 months ago
So the rapid response was only 66.7% effective.
Score: 4 Votes (Like | Disagree)