Use-after-free in macOS - CVE-2026-43684
Published: September 15, 2026
Vulnerability identifier: #VU149864
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-2026-43684
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local application to perform a denial of service attack.
The vulnerability exists due to a use-after-free error within the OS kernel. A local application can trigger memory corruption and crash the OS kernel.
Affected software
macOS
How to mitigate CVE-2026-43684
Install updates from vendor's website.
macOS - update to 15.8 24H23