Name: CVE-2026-20679: Out-of-bounds Read
Creator: Rapid7
Published: 2026-08-21T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-20679, CWE-416, CWE-125, CVSS 4.3, EPSS 0.00357

The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Processing a maliciously crafted file may lead to unexpected app termination.

CVSS Details

CVSS 3.1 Base Score: 4.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Apple Osx Coreui	—	Upgrade macOS to the latest version	Sep 10, 2026	Aug 20, 2026

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence