CVE-2026-64718 Apple CVE debrief

Who should care

Defenders responsible for Apple product security, particularly those managing Safari and other affected products, should assess exposure and apply patches. This includes IT and security teams managing Apple devices within their organizations, as well as security teams responsible for vulnerability management and patching. Additionally, operators of Apple products in environments exposed to untrusted web content should prioritize verifying and applying the

Why it matters

Defenders should prioritize verifying and applying patches for affected Apple products, particularly those exposed to untrusted web content, to prevent potential crashes.

• Verify and apply patches to prevent potential crashes
• Restrict exposure to untrusted web content to minimize risk

Technical summary

A use-after-free issue was addressed with improved memory management in Safari and other Apple products. Processing maliciously crafted web content may lead to an unexpected Safari crash. The vulnerability is caused by improper handling of memory, allowing for potential exploitation through malicious web content. Apple has addressed this issue in various product updates, including Safari 26.6, Safari 27, iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, visionOS 27, and watchOS 26.6.

Defensive priority

Defenders should prioritize verifying and applying patches for affected Apple products, particularly those exposed to untrusted web content.

Recommended defensive actions

• Verify and apply patches for affected Apple products
• Restrict exposure of affected products to untrusted web content
• Monitor for unexpected Safari crashes
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its description, CVSS score, and affected products. Apple has released advisories for this issue, which include specific details on affected versions and patches. The CVE record was published on 2026-07-27T21:17:10.753Z and has not been modified since then. The NVD entry is currently Modified. Defenders should verify and apply patches for affected Apple products, particularly those exposed to untrusted web content, to prevent potential crashes.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.