What is CVE-2026-65401?

CVE-2026-65401 is a medium-severity vulnerability in Apple macOS, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.5/10. Published 2026-09-14.

How severe is CVE-2026-65401?

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

Vulnerability in Apple macOS

CVE-2026-65401

A race condition was addressed with improved state handling. This issue is fixed in macOS Golden Gate 27, macOS Tahoe 26.7. An app may be able to cause unexpected system termination.

Vulnerability class: Race Condition

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:N/A:H.

Affected products

Apple Macos

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

References

product-security@apple.com
product-security@apple.com

Frequently asked questions

What is CVE-2026-65401?: CVE-2026-65401 is a medium-severity vulnerability in Apple macOS, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 5.5/10. Published 2026-09-14.
How severe is CVE-2026-65401?: Medium severity. CVSS v3 base score is 5.5 out of 10.