Memory corruption in macOS - CVE-2026-43687

Vulnerability identifier: #VU149790

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-43687

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to disclose sensitive information.

The vulnerability exists due to improper restriction of operations within the bounds of a memory buffer in the kernel when processing input. A local user can interact with the kernel to disclose sensitive information.

macOS
iPadOS
Apple iOS
tvOS
watchOS
visionOS

Install update from vendor's website.

macOS - addressed in versions 26.7 25G229, 27.0 26A428
iPadOS - addressed in versions 26.7 23H24, 27.0 24A437
Apple iOS - addressed in versions 26.7 23H24, 27.0 24A427, 27.0 24A437
tvOS - update to 27.0 24J361
watchOS - update to 27.0 24R364
visionOS - update to 27.0

• https://support.apple.com/en-us/149042

• Multiple vulnerabilities in macOS Tahoe
• Multiple vulnerabilities in macOS
• Multiple vulnerabilities in Apple iOS 26 and iPadOS 26
• Multiple vulnerabilities in Apple iOS 27 and iPadOS 27
• Multiple vulnerabilities in Apple visionOS
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in Apple tvOS