CVE-2026-39877: A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. An app may be able to…

PriorityP340high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

EPSS

0.13%

3.1th percentile

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

Affected

4 ranges

Vendor	Product	Version range	Fixed in
apple	macos	< 14.8.8	14.8.8
apple	macos	< 15.7.8	15.7.8
apple	macos	>= 14.0 < 14.8.8	14.8.8
apple	macos	>= 15.0 < 15.7.8	15.7.8

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