Security News > 2024 > May > Apple backports fix for RTKit iOS zero-day to older iPhones
Apple has backported security patches released in March to older iPhones and iPads, fixing an iOS Kernel zero-day tagged as exploited in attacks.
Today, Apple backported the March security updates to address this security flaw on iOS 16.7.8, iPadOS 16.7.8, and macOS Ventura 13.6.7 with improved input validation.
Apple has yet to disclose who disclosed the zero-day or whether it was discovered internally, and it has provided no information on the nature of the attacks exploiting it in the wild.
Even though Apple has not released details regarding CVE-2024-23296 exploitation, iOS zero-days are commonly used in state-sponsored spyware attacks targeting high-risk individuals, including journalists, dissidents, and opposition politicians.
In January, Apple also backported patches for two WebKit zero-days, which were patched in November for newer devices.
With today's iOS 17.5 update, Apple has also added support for unwanted tracking alerts.
News URL
Related news
- Apple Patches Actively Exploited Zero-Day Affecting iPhones, Macs, and More (source)
- Apple zero-day vulnerability exploited to target iPhone users (CVE-2025-24085) (source)
- Apple Patches Actively Exploited iOS Zero-Day CVE-2025-24200 in Emergency Update (source)
- Apple fixes this year’s first actively exploited zero-day bug (source)
- Apple plugs security hole in its iThings that's already been exploited in iOS (source)
- SLAP, Apple, and FLOP: Safari, Chrome at risk of data theft on iPhone, Mac, iPad Silicon (source)
- Week in review: Apple 0-day used to target iPhones, DeepSeek’s popularity exploited by scammers (source)
- First Apple-notarized porn app available to iPhone users in Europe (source)
- Apple fixes zero-day exploited in 'extremely sophisticated' attacks (source)
- Apple fixes zero-day flaw exploited in “extremely sophisticated” attack (CVE-2025-24200) (source)
Related Vulnerability
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2024-03-05 | CVE-2024-23296 | Out-of-bounds Write vulnerability in Apple products A memory corruption issue was addressed with improved validation. | 7.8 |