Improper input validation in macOS - CVE-2026-84604
Published: October 27, 2026
Vulnerability identifier: #VU158022
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-2026-84604
CWE-ID: CWE-20
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 insufficient input validation in OpenBSM. A remote attacker can trick the victim into opening a specially crafted file and escalate privileges on the system.
Affected software
macOS
How to mitigate CVE-2026-84604
Install update from vendor's website.
macOS - addressed in versions 26.7.2 25G332, 15.8.2 24H232