CVE-2026-64691

—

CVSS 3.1

9.8 critical

EPSS

<1%p38

Published

Jul 27, 2026 (Jul 27, 2026)

Modified

Jul 28, 2026

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.

Vendors: apple
Products: macos
Weakness: CWE-120
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.4%)

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