Memory corruption in macOS - CVE-2026-43776
Published: August 17, 2026
Vulnerability identifier: #VU143651
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-43776
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local application to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in AppleDouble. A local application can trick the victim into opening a specially crafted file and perform unexpected app termination or arbitrary code execution.
Affected software
macOS
Apple iOS
iPadOS
Apple iOS
iPadOS
How to mitigate CVE-2026-43776
Install update from vendor's website.
macOS - addressed in versions 26.6 25G72, 15.7.8 24G824
Apple iOS - update to 26.6 23G71
iPadOS - update to 26.6 23G71
Apple iOS - update to 26.6 23G71
iPadOS - update to 26.6 23G71