Memory corruption in macOS - CVE-2026-65341

Vulnerability identifier: #VU143969

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-65341

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to memory corruption in WebKit when rendering web content. A remote attacker can craft malicious web content to execute arbitrary code.

macOS
iPadOS
Apple iOS
tvOS
watchOS
visionOS
Apple Safari

Install update from vendor's website.

macOS - update to 26.6.2 25G83
iPadOS - addressed in versions 18.7.10 22H374, 26.6.1 23G83
Apple iOS - addressed in versions 18.7.10 22H374, 26.6.1 23G83
Apple Safari - update to 26.6.1
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 iOS 18 and iPadOS 18
• Multiple vulnerabilities in Apple Safari
• Multiple vulnerabilities in Apple visionOS
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in Apple tvOS