Improper input validation in macOS - CVE-2026-65349

Vulnerability identifier: #VU143964

CSH Severity: Low

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

CVE-ID: CVE-2026-65349

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation in Kernel. A local application can cause unexpected system termination or read kernel memory.

macOS
iPadOS
Apple iOS
tvOS
watchOS
visionOS

Install update from vendor's website.

macOS - addressed in versions 26.6.2 25G83, 15.8 24H23
iPadOS - update to 26.6.1 23G83
Apple iOS - update to 26.6.1 23G83
tvOS - update to 27.0 24J361
watchOS - update to 27.0 24R364
visionOS - update to 27.0

• https://support.apple.com/en-us/148281

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