Use after free in macOS - CVE-2026-65343
Published: August 18, 2026
Vulnerability identifier: #VU143963
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-65343
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in Kernel. A remote attacker can trick the victim into opening a specially crafted file and cause unexpected system termination.
Affected software
macOS
iPadOS
Apple iOS
iPadOS
Apple iOS
How to mitigate CVE-2026-65343
Install update from vendor's website.
macOS - update to 26.6.2 25G83
iPadOS - update to 26.6.1 23G83
Apple iOS - update to 26.6.1 23G83
iPadOS - update to 26.6.1 23G83
Apple iOS - update to 26.6.1 23G83