Main Vulnerability Database Vulnerabilities #VU158009

Use after free in macOS - CVE-2026-84545

Published: October 27, 2026

Vulnerability identifier: #VU158009

CSH Severity: Low

CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-84545

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to bypass implemneted security restrictions.

The vulnerability exists due to a use-after-free error in CUPS. A local application can escape the sandbox and execute code with root privileges.

macOS

Install update from vendor's website.

macOS - addressed in versions 26.7.2 25G332, 15.8.2 24H232