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PatchSiren cyber security CVE debrief

CVE-2026-64715 Apple CVE debrief

A use-after-free issue was addressed with improved memory management 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, tvOS 27, visionOS 27, watchOS 27. This vulnerability could lead to unexpected process crashes when processing maliciously crafted web content. Defenders should assess exposure and prioritize patching for affected Apple products, particularly those exposed to web content. The issue is caused by improper handling of memory after it has been freed, which can be exploited by malicious web content.

Vendor
Apple
Product
Safari
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-17
Original CVE updated
2026-09-14
Advisory published
2026-08-17
Advisory updated
2026-09-14

Who should care

Defenders responsible for Apple products, particularly those exposed to web content, should assess exposure and prioritize patching. This includes operators of affected systems, platform administrators, vulnerability management teams, and security teams. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance, and plan vendor-supported updates or mitigations through normal change control.

Why it matters

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

  • Unexpected process crashes may occur due to maliciously crafted web content
  • Defenders must verify and apply patches for affected Apple products
  • Exposure to untrusted web content may lead to security consequences

Technical summary

A use-after-free issue was addressed with improved memory management in various Apple products, including 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, tvOS 27, visionOS 27, watchOS 27. This vulnerability could lead to unexpected process crashes when processing maliciously crafted web content. The issue is caused by improper handling of memory after it has been freed, which can be exploited by malicious web content. Defenders should prioritize verifying and applying patches for affected Apple products, particularly those exposed to web content.

Defensive priority

Defenders should prioritize verifying and applying patches for affected Apple products, particularly those exposed to 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 process crashes in affected products
  • 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. The vulnerability is caused by a use-after-free issue addressed with improved memory management. Defenders should verify and apply patches for affected Apple products, particularly those exposed to web content, to prevent unexpected process crashes. The CVE record was published on 2026-08-17T22:17:17.343Z and has not been modified since then. The NVD entry is currently Modified.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-64715 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-64715

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-64715 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-64715

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental 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.