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.