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Apple Urges Immediate Update to iOS 18.4.1 for Critical Security Fixes

The update addresses two actively exploited zero-day vulnerabilities and resolves a wireless CarPlay connectivity issue.

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Apple rolls out a major iOS 18.4.1 update to fix security flaws on iPhones and iPads.
iOS 18.4.1 is now available to download as an OTA update on iPhone

Overview

  • iOS 18.4.1 was released on April 16, 2025, as an urgent interim update to fix critical security flaws and a CarPlay bug.
  • The update patches two zero-day vulnerabilities in CoreAudio and RPAC, which were exploited in targeted attacks against specific individuals.
  • Apple credited Google’s Threat Analysis Group for identifying one of the vulnerabilities, suggesting potential involvement of advanced cyberattacks.
  • The update also resolves a rare issue preventing wireless CarPlay connections in certain vehicles, improving functionality for affected users.
  • Simultaneous updates for iPadOS, macOS, tvOS, and visionOS extend these critical security fixes across Apple’s ecosystem.