Apple has rolled out iOS 18.3.2, an important update that tackles a vulnerability in WebKit, the engine Safari uses for browsing. This flaw could let harmful code break out of its secure environment, potentially affecting other parts of the device.
Apple initially addressed this issue, labeled CVE-2025-24201, in iOS 17.2, released late last year. The new update includes additional security measures. According to Apple, they’ve enhanced checks to block unauthorized actions. This patch also appears in iPadOS 18.3.2, macOS Sequoia 15.3.2, visionOS 2.3.2, and Safari 18.3.1.
Adam Boynton, from Jamf, emphasized the need to patch WebKit quickly, given its role in handling web content. He explained that attackers could exploit this flaw to escape the secure sandbox and access other data on iOS devices.
It’s unclear why the first fix wasn’t enough or why it took so long to release this new update. Apple mentioned an advanced attack targeting specific individuals on versions of iOS before 17.2. This likely points to state-sponsored hackers monitoring high-profile figures like government officials and journalists.
This update follows closely on the heels of iOS 18.3.1, which indicates urgency. Apple tends to share limited details about vulnerabilities initially, allowing users time to apply updates and protect against potential exploitation.
Interestingly, iOS 18.3.1 was released just a day after Google updated its Chrome browser to fix the same CVE-2025-24201 issue across multiple platforms. Google acknowledged an actively exploited flaw, which Apple had already reported in early March. It seems Apple was working on its own solution for weeks.
In addition to fixing the vulnerability, the update also resolves a playback issue for some streaming content. However, there’s been chatter on social media that this update activates Apple Intelligence, their AI tool, even for those who had it turned off. Users can manually disable it again, but the automatic activation has frustrated some.
If you’re an Apple user, it’s smart to update your devices quickly, especially if you’re running an older version than iOS 17.2. This update is compatible with iPhone XS and later, and various iPad models starting from the 7th generation. You should see an update prompt, but if not, you can check for it manually by going to Settings, then General, and finally Software Update.
