A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.
History

Tue, 28 Jul 2026 16:15:00 +0000

Type Values Removed Values Added
Title Buffer Overflow Potentially Enables Remote Attacker to Cause Application Crash or Heap Corruption on Apple Devices
Weaknesses CWE-119
CWE-120
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 28 Jul 2026 03:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos
Vendors & Products Apple
Apple ios And Ipados
Apple macos
Apple tvos
Apple visionos

Mon, 27 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Description A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6. A remote attacker may be able to cause unexpected application termination or heap corruption.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-07-27T20:13:54.442Z

Updated: 2026-07-28T14:00:16.924Z

Reserved: 2026-07-20T18:10:53.025Z

Link: CVE-2026-64771

cve-icon Vulnrichment

Updated: 2026-07-28T13:59:59.779Z

cve-icon NVD

No data.

cve-icon Redhat

No data.