Memory corruption in macOS - CVE-2026-64771
Published: August 17, 2026
Vulnerability identifier: #VU143751
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-64771
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in Model I/O. A remote attacker can trick the victim into opening a specially crafted file and cause unexpected application termination or heap corruption.
Affected software
macOS
visionOS
tvOS
Apple iOS
iPadOS
visionOS
tvOS
Apple iOS
iPadOS
How to mitigate CVE-2026-64771
Install update from vendor's website.
macOS - addressed in versions 26.6 25G72, 15.7.8 24G824
visionOS - update to 26.6
tvOS - update to 26.6 23L773
Apple iOS - update to 26.6 23G71
iPadOS - update to 26.6 23G71
visionOS - update to 26.6
tvOS - update to 26.6 23L773
Apple iOS - update to 26.6 23G71
iPadOS - update to 26.6 23G71