Update Now: iOS 18.4.1 and macOS Sequoia 15.4.1 Address Actively Exploited Vulnerabilities

The iOS 18.4.1, iPadOS 18.4.1, macOS Sequoia 15.4.1, tvOS 18.4.1, and visionOS 2.4.1 updates that Apple released today include fixes for two major vulnerabilities, which means you should install the new software as soon as you can.

bug security vulnerability issue fix larry
According to Apple, it is aware of reports that these vulnerabilities may have been actively exploited in the wild. Apple says that the security flaws were potentially used in an "extremely sophisticated attack against specific targeted individuals."

One of the issues impacts CoreAudio, and involves a maliciously crafted audio file. Processing the audio stream in the media file could result in code execution. Apple fixed the memory corruption issue with improved bounds checking.

The other vulnerability affected pointer authentication code, and an attacker with arbitrary read and write capability could bypass the Pointer Authentication features that prevent memory from being tampered with. Apple removed the vulnerable code to prevent the exploit from working.

All of the updates are available today, and focus primarily on the security fixes. iOS 18.4.1 also addresses an issue that could prevent some wireless CarPlay setups from working properly in select vehicles.

Related Forums: iOS 18, iPadOS 18, macOS Sequoia

Popular Stories

Apple Logo Zoomed

Tim Cook Teases Plans for Apple's Upcoming 50th Anniversary

Thursday February 5, 2026 12:54 pm PST by
Apple turns 50 this year, and its CEO Tim Cook has promised to celebrate the milestone. The big day falls on April 1, 2026. "I've been unusually reflective lately about Apple because we have been working on what do we do to mark this moment," Cook told employees today, according to Bloomberg's Mark Gurman. "When you really stop and pause and think about the last 50 years, it makes your heart ...
wwdc sans text feature

Apple Rumored to Announce New Product on February 19

Thursday February 5, 2026 12:22 pm PST by
Apple plans to announce the iPhone 17e on Thursday, February 19, according to Macwelt, the German equivalent of Macworld. The report, citing industry sources, is available in English on Macworld. Apple announced the iPhone 16e on Wednesday, February 19 last year, so the iPhone 17e would be unveiled exactly one year later if this rumor is accurate. It is quite uncommon for Apple to unveil...
Finder Siri Feature

Why Apple's iOS 26.4 Siri Upgrade Will Be Bigger Than Originally Promised

Friday February 6, 2026 3:06 pm PST by
In the iOS 26.4 update that's coming this spring, Apple will introduce a new version of Siri that's going to overhaul how we interact with the personal assistant and what it's able to do. The iOS 26.4 version of Siri won't work like ChatGPT or Claude, but it will rely on large language models (LLMs) and has been updated from the ground up. Upgraded Architecture The next-generation...
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
While the iOS 26.3 Release Candidate is now available ahead of a public release, the first iOS 26.4 beta is likely still at least a week away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
iphone 17 pro dark blue 1

iPhone 18 Pro Max Rumored to Deliver Next-Level Battery Life

Friday February 6, 2026 5:14 am PST by
The iPhone 18 Pro Max will feature a bigger battery for continued best-in-class battery life, according to a known Weibo leaker. Citing supply chain information, the Weibo user known as "Digital Chat Station" said that the iPhone 18 Pro Max will have a battery capacity of 5,100 to 5,200 mAh. Combined with the efficiency improvements of the A20 Pro chip, made with TSMC's 2nm process, the...

Top Rated Comments

Havoc035 Avatar
11 months ago

Instead of 'this affected only a small amount/handful of users' they changed their text to sophisticated attacks against specific individuals. Classic Apple Marketing.
Sure, but this description is also arguably better for describing state sponsored targeted attacks.
Score: 14 Votes (Like | Disagree)
VictoryHighway Avatar
11 months ago

I hope some day this type of updates are released as a “rapid security response”
Yeah. Whatever happened to those?
Score: 13 Votes (Like | Disagree)
rictus007 Avatar
11 months ago
I hope some day this type of updates are released as a “rapid security response”
Score: 12 Votes (Like | Disagree)
hoodafoo Avatar
11 months ago

Has anyone actually ever been hacked? Still rolling on 16.7.2 on my 14 pro…. You don’t ever see any horror stories of people having their iPhone hacked because they didn’t update. At least I haven’t.
It just means you're not important
Score: 9 Votes (Like | Disagree)
jz0309 Avatar
11 months ago
Obliged.
I like security and bug fixes
Score: 9 Votes (Like | Disagree)
jayducharme Avatar
11 months ago
Weird: after the update, I'm no longer receiving 2-factor authentication texts. I tried rebooting, but no luck. I'm still getting regular messages though.

Never mind. I'm a dope. After the last power-down I forgot to turn my iPhone back on. Everything's working fine.
Score: 6 Votes (Like | Disagree)