Vulnerability record · CVE-2026-64698 · published 27 July 2026

CVE-2026-64698: Apple macos memory buffer overflow vulnerability

Apple · Macos

The 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 cause unexpected system termination or read kernel memory.

9.8 CVSS 3.1 Critical EPSS 0.59% · top 54.2% CWE-119 · Memory buffer overflow

9.8CVSS 3.1 base score

0.59%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

3References

30 Jul 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Macos Apple

References

Link	Tags
https://support.apple.com/en-us/128067	Release NotesVendor Advisory
https://support.apple.com/en-us/128071	Release NotesVendor Advisory
https://support.apple.com/en-us/128072	Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-64698), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.