CVE-2026-64691

Published: Jul 27, 2026Modified: Jul 28, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

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

Description

A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Tahoe 26.6. An app may be able to cause unexpected system termination.

Affected (1)

Products: Apple: Macos

Apple

1 product

Macos

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Apple Macos	From 26.0 to 26.6

Related CWEs

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (1)

https://support.apple.com/en-us/128067

Source: product-security@apple.com

Release NotesVendor Advisory

Timeline

No history available yet.