CVE-2026-20620

HighCVSS 7.7/10Last modified Jun 17, 2026

Description

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Weakness enumeration

CWE-125

Affected software

No affected versions have been published.

Timeline

Published
Feb 11, 2026
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2026-20620: High severity, CVSS 7.7 | Vulnix