Memory corruption in macOS - CVE-2026-43790
Published: September 15, 2026
Vulnerability identifier: #VU149785
CSH Severity: Medium
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-2026-43790
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to a boundary error in Kernel. A remote attacker can trick the victim into opening a specially crafted file and cause unexpected system termination or corrupt kernel memory.
Affected software
macOS
How to mitigate CVE-2026-43790
Install update from vendor's website.
macOS - addressed in versions 26.7 25G229, 15.8 24H23