What is CVE-2026-65327?

CVE-2026-65327 is a high-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 8.4/10. Published 2026-10-26.

How severe is CVE-2026-65327?

High severity. CVSS v3 base score is 8.4 out of 10.

Vulnerability in Apple macOS

CVE-2026-65327

A logic issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A local attacker may be able to elevate their privileges.

Published 2026-10-26 · last modified 2026-10-26.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apple macOS

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

support.apple.com/en-us/149521
support.apple.com/en-us/149522
support.apple.com/en-us/149523

Frequently asked questions

What is CVE-2026-65327?: CVE-2026-65327 is a high-severity vulnerability in Apple macOS, classified under Protection Mechanism Failure. CVSS score: 8.4/10. Published 2026-10-26.
How severe is CVE-2026-65327?: High severity. CVSS v3 base score is 8.4 out of 10.