CVE-2026-64782 Apple CVE debrief

Who should care

Defenders responsible for Apple products and Safari, particularly those exposed to untrusted web content, should assess exposure and prioritize patching. This includes reviewing and updating inventory of Apple devices and Safari versions, monitoring for unexpected Safari behavior or suspicious web content activity, and verifying and applying patches for affected Apple products.

Why it matters

A memory corruption vulnerability in Apple products may lead to a Safari crash when processing maliciously crafted web content. Defenders should prioritize verifying and applying patches for affected products.

• Verify and apply patches to prevent potential Safari crashes
• Monitor for unexpected Safari behavior or suspicious web content activity
• Review and update inventory of Apple devices and Safari versions

Technical summary

A memory corruption vulnerability was addressed with improved locking in Safari and other Apple products. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash. The vulnerability affects Apple products, specifically Safari, iOS, iPadOS, macOS, and visionOS. Defenders should review the official advisories and CVE record for detailed information on affected versions and patches.

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
• Review and update inventory of Apple devices and Safari versions
• Monitor for unexpected Safari crashes or suspicious web content activity
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, affected products, and fixed versions. Apple has released advisories for this issue. The vulnerability was addressed with improved locking in Safari and other Apple products. Official advisories and CVE records should be consulted for specific details on affected versions and patches.

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.