Memory corruption in macOS - CVE-2026-43810

Vulnerability identifier: #VU143731

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-43810

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in Kernel. A local user can trick the victim into opening a specially crafted file and cause unexpected system termination or corrupt kernel memory.

macOS
visionOS
tvOS
Apple iOS
iPadOS
watchOS

Install update from vendor's website.

macOS - addressed in versions 26.6 25G72, 14.8.8 23J620, 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
watchOS - update to 26.6 23U67

• https://support.apple.com/en-us/128067

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