Improper privilege management in macOS - CVE-2026-28891

 

Improper privilege management in macOS - CVE-2026-28891

Published: March 25, 2026


Vulnerability identifier: #VU124394
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-2026-28891
CWE-ID: CWE-269
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to improper authorization in NetAuth when handling local application requests. A local user can exploit this to escalate privileges on the system.

Exploitation requires local access and the ability to execute a local application.


Affected software

macOS

How to mitigate CVE-2026-28891

Install update from vendor's website.

macOS - addressed in versions 26.4 25E246, 14.8.5 23J423, 15.7.5 24G624

External References

Related Security Bulletins