AppleCVE-2026-84558

Apple macOS: double free

CVE-2026-84558 · Published Sep 14, 2026 · updated Sep 17, 2026

Medium5.5

Fix: upgrade to 27 or later

A double free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27. An app may be able to cause unexpected system termination.

Affected versions

Package	Affected	Fixed in
macOS Product	< 27	27

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity from: NVD
Weakness: CWE-415

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