CVE-2025-43221
7.1Apple · iOS, iPadOS, macOS, tvOS, visionOS
An out-of-bounds access vulnerability in multiple Apple operating systems allows for memory corruption or application termination when processing malicious media files.
Executive summary
Apple has addressed an out-of-bounds access vulnerability across multiple operating systems that could lead to memory corruption or application crashes if a user processes a malicious media file.
Vulnerability
This vulnerability involves an out-of-bounds access issue triggered by the processing of maliciously crafted media files. The vulnerability requires user interaction to open the file and can be triggered by an unauthenticated local user.
Business impact
The vulnerability carries a CVSS score of 7.1, placing it in the High severity range. Successful exploitation could lead to significant system instability through unexpected application termination or the potential for arbitrary memory corruption. Such flaws present a risk to data integrity and system availability, particularly in environments where users frequently interact with external media files.
Remediation
Immediate Action: Update all affected Apple devices to the versions where the fix is implemented: iOS 18.6, iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, or visionOS 2.6.
Proactive Monitoring: Monitor system logs for frequent or unexplained application crashes that correlate with media processing tasks.
Compensating Controls: Ensure that endpoint protection software is active and that users are instructed to exercise caution when opening media files from untrusted or unknown sources.
Exploitation status
Public Exploit Available: No (exploit_available: false)
Analyst recommendation
Given the High severity score and the potential for memory corruption, organizations should prioritize the deployment of the vendor-provided security updates. Administrators must ensure that all managed Apple devices are patched to the latest versions to neutralize the underlying memory safety flaw.