CVE-2026-64700 Apple CVE debrief

Who should care

Users of Apple devices running affected operating systems, including iOS, iPadOS, macOS Sequoia, macOS Sonoma, macOS Tahoe, tvOS, visionOS, and watchOS, should apply patches to prevent potential system termination. This includes administrators and security teams responsible for managing and securing Apple devices within their organizations. The CVSS score of 9.8 indicates critical severity, emphasizing the need for immediate attention and patch application to mitigate the risk of unexpected system termination caused by this vulnerability. Additionally, operators and platform managers should review the official advisory and CVE record to validate affected scope, severity, and vendor guidance, and plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Compensating controls for exposed systems should be reviewed while remediation is scheduled and verified. Relevant monitoring, detection, and logs for exposed assets should be checked for extra review, and exceptions should be tracked, with remediated assets retested and the item closed only after evidence is documented. Security teams should prioritize patching based on the critical severity of this vulnerability and the potential impact on system stability and security. They should also verify that affected product deployments exist in managed environments and assign an owner for follow-up. The official advisory and CVE record should be reviewed to validate affected scope, severity, and vendor guidance, and compensating controls for exposed systems should be evaluated while remediation is scheduled and verified. Monitoring, detection, and logs for exposed assets should be checked for extra review, and exceptions should be tracked, with remediated assets retested and the item closed only after evidence is documented. Security teams should prioritize patching based on the critical severity of this vulnerability and the potential impact on system stability and security. They should also verify that affected product deployments exist in managed environments and assign an owner for follow-up. The official advisory and CVE record should be reviewed to validate affected ,

Technical summary

A use after free issue was addressed with improved memory management in various Apple operating systems, including iOS, iPadOS, macOS Sequoia, macOS Sonoma, macOS Tahoe, tvOS, visionOS, and watchOS. This issue could allow an app to cause unexpected system termination. The affected products include iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6.

Defensive priority

Apply available patches for iOS, iPadOS, macOS, tvOS, visionOS, and watchOS to prevent potential system termination.

Recommended defensive actions

• Apply patches for iOS 18.7.10 and iPadOS 18.7.10
• Apply patches for iOS 26.6 and iPadOS 26.6
• Apply patches for macOS Sequoia 15.7.8
• Apply patches for macOS Sonoma 14.8.8
• Apply patches for macOS Tahoe 26.6
• Apply patches for tvOS 26.6
• Apply patches for visionOS 26.6
• Apply patches for watchOS 26.6

Evidence notes

The CVE-2026-64700 record indicates a use after free issue addressed with improved memory management in various Apple operating systems. Affected products include iOS, iPadOS, macOS Sequoia, macOS Sonoma, macOS Tahoe, tvOS, visionOS, and watchOS. The CVSS score is 9.8, indicating critical severity.

Official resources