CVE-2026-20620

Published: Feb 11, 2026Modified: Jun 17, 2026

7.7

Vector

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

Exploitability: 2.5 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (3)

Products: Apple: Macos

Apple

1 product

Macos

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Apple Macos	From 14.0 to 14.8.4
Apple Macos	From 15.0 to 15.7.4
Apple Macos	From 26.0 to 26.3

Related CWEs

CWE-125

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (3)

https://support.apple.com/en-us/126348

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126349

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126350

Source: product-security@apple.com

Release NotesVendor Advisory

Timeline

No history available yet.