Memory corruption in macOS - CVE-2026-43655
Published: May 12, 2026
Vulnerability identifier: #VU131034
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-2026-43655
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local application to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in IOSurfaceAccelerator. A local application can cause unexpected system termination or read kernel memory.
Affected software
macOS
Apple iOS
iPadOS
tvOS
watchOS
Apple iOS
iPadOS
tvOS
watchOS
How to mitigate CVE-2026-43655
Install update from vendor's website.
macOS - update to 26.5 25F71
Apple iOS - update to 26.5 23F77
iPadOS - update to 26.5 23F77
tvOS - update to 26.5 23L471
watchOS - update to 26.5 23T570
Apple iOS - update to 26.5 23F77
iPadOS - update to 26.5 23F77
tvOS - update to 26.5 23L471
watchOS - update to 26.5 23T570