Medium · 5.5 CVE-2026-64699 EUVD-2026-49516GHSA-554h-c6gx-2294

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8…

Published Jul 27, 2026 · Updated Jul 28, 2026 · Assigned by apple

Vendor: Apple Product: macOS Platform: macOS

Description

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to disclose kernel memory.

Affected products

Vendor	Product	Affected	Fixed
Apple	macOS	< 14.8.8, < 15.7.8, < 26.6	14.8.8

Advisories 2

WID-SEC-2026-2543 Apple macOS (Tahoe, Sonoma und Sequoia): Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 14, 2026
NCSC-2026-0267 Kwetsbaarheden verholpen in Apple MacOS NCSC-NL (Netherlands) · Jul 28, 2026

References

https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128071
https://support.apple.com/en-us/128072