What is CVE-2026-84514?

CVE-2026-84514 is a medium-severity vulnerability in Apple macOS, classified under Missing Authorization. CVSS score: 5.5/10. Published 2026-09-14.

How severe is CVE-2026-84514?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Auth bypass in Apple macOS

CVE-2026-84514

This issue was addressed with additional entitlement checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to modify protected parts of the file system.

Vulnerability class: Broken Access Control

Published 2026-09-14 · last modified 2026-09-18.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.001 (3.2th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Apple macOS

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

support.apple.com/en-us/149035 (Vendor Advisory)
support.apple.com/en-us/149042 (Vendor Advisory)
support.apple.com/en-us/149043 (Vendor Advisory)

Frequently asked questions

What is CVE-2026-84514?: CVE-2026-84514 is a medium-severity vulnerability in Apple macOS, classified under Missing Authorization. CVSS score: 5.5/10. Published 2026-09-14.
How severe is CVE-2026-84514?: Medium severity. CVSS v3 base score is 5.5 out of 10.