Main Vulnerability Database Vulnerabilities #VU131087

Out-of-bounds write in macOS - CVE-2026-28819

Published: May 12, 2026

Vulnerability identifier: #VU131087

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-28819

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to an out-of-bounds write in Wi-Fi. A local application can execute arbitrary code with kernel privileges.

macOS
iPadOS
Apple iOS

Install update from vendor's website.

macOS - addressed in versions 26.5 25F71, 14.8.7 23J520, 15.7.7 24G720
iPadOS - update to 18.7.9 22H355
Apple iOS - update to 18.7.9 22H355