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PatchSiren cyber security CVE debrief

CVE-2026-64726 Apple CVE debrief

The CVE-2026-64726 vulnerability is a critical memory handling issue in Apple devices, with a CVSS score of 9.8. An attacker in physical proximity may be able to corrupt process memory. The issue is fixed in multiple Apple operating systems and devices, including iOS 18.7.10, iPadOS 18.7.10, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. Organizations should prioritize patching this vulnerability, especially those in high-risk environments or with sensitive information.

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

Organizations and individuals using Apple devices, especially those in high-risk environments or with sensitive information, should prioritize patching this vulnerability. This includes reviewing and updating security patches for affected Apple devices, ensuring all systems are updated with the latest security patches, and monitoring systems for any suspicious activity. Additionally, consider implementing additional security measures for physical security, such as restricting access to sensitive areas and monitoring for unauthorized access.

Technical summary

The CVE-2026-64726 vulnerability has a critical CVSS score of 9.8 and is caused by a memory handling issue in Apple devices. An attacker in physical proximity may be able to corrupt process memory. The issue is fixed in multiple Apple operating systems and devices, including iOS 18.7.10, iPadOS 18.7.10, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. Organizations and individuals using Apple devices should prioritize patching this vulnerability.

Defensive priority

This vulnerability has a critical CVSS score of 9.8 and could allow an attacker in physical proximity to corrupt process memory. Immediate attention is required to ensure systems are updated with the latest security patches.

Recommended defensive actions

  • Apply the latest security patches for affected Apple devices
  • Ensure all systems are updated with the latest security patches
  • Monitor systems for any suspicious activity
  • Consider implementing additional security measures for physical security
  • Review and update security patches for affected Apple devices
  • Verify patch deployment in managed environments
  • Track patch exceptions and retest remediated assets

Evidence notes

The CVE-2026-64726 issue was addressed with improved memory handling and is fixed in multiple Apple operating systems and devices, including iOS 18.7.10, iPadOS 18.7.10, iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6. An attacker in physical proximity may be able to corrupt process memory. The CVE record was published on 2026-07-27T21:17:11.543Z and has not been modified since then. The NVD entry is currently Modified.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-64726 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-64726

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

  • CVE-2026-64726 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-64726

    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.