CVE-2026-64691

CRITICAL CVSS 9.8 View on NVD ↗

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.

CVSS Vector

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

References

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

Published: Jul 27, 2026 21:17 UTC Modified: Jul 28, 2026 16:20 UTC