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PatchSiren cyber security CVE debrief

CVE-2026-64769 Apple CVE debrief

An executive overview of CVE-2026-64769: This out-of-bounds write issue, addressed with improved bounds checking, affects multiple Apple products including iOS, iPadOS, macOS, tvOS, and visionOS. The vulnerability could allow a remote attacker to cause unexpected application termination or heap corruption. Users and administrators should apply patches immediately to prevent potential service disruptions. The CVE record was published on 2026-07-27T21:17:15.020Z and has not been modified since then.

Vendor
Apple
Product
iOS and iPadOS
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-27
Original CVE updated
2026-08-17
Advisory published
2026-07-27
Advisory updated
2026-08-17

Who should care

Users of Apple products, particularly those using iOS, iPadOS, macOS, tvOS, and visionOS, should apply patches to prevent potential remote application termination or heap corruption. This includes administrators and security teams responsible for managing these systems, as well as operators who may be impacted by potential service disruptions. Immediate action is required to ensure system security and integrity.

Technical summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in 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. A remote attacker may be able to cause unexpected application termination or heap corruption. The vulnerability impacts multiple Apple products and requires immediate patching to prevent exploitation.

Defensive priority

Critical vulnerability in Apple products, with potential for remote application termination or heap corruption.

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

Evidence notes

The CVE record and NVD detail provide information on the vulnerability, its impact, and affected products. Apple has released updates to address the issue. Evidence is limited to CVE and NVD data. Defenders should verify patch deployment and monitor for unexpected application termination or heap corruption.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-64769 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-64769

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

  • CVE-2026-64769 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-64769

    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.