CVE-2026-64697 — The issue was addressed with improved memory handling

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CRITICAL

The issue was addressed with improved memory handling

Published Jul 27, 2026

9.8

CRITICAL

CVSS 3.1

EPSS 0.58%

Description

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 corrupt kernel memory.

Affected products

Vendor Apple Product macOS Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <14.8.8
- Version
  0
  Status
  affected
  Constraints
  <15.7.8
- Version
  0
  Status
  affected
  Constraints
  <26.6

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Apple

macOS

n/a

Version	Status	Constraints
0	affected	<14.8.8
0	affected	<15.7.8
0	affected	<26.6

Remediation

No remediation recorded yet.

Metrics

0.58% 0.00585

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.00585

Score over time

Jul–Oct 2026

EPSS v5

Percentile over time

EPSS v5

Table of values (2 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 3, 2026	0.58% (0.00585)	46.08th	v5 (v2026.06.15)
Jul 28, 2026	0.16% (0.00162)	5.77th	v5 (v2026.06.15)

Weaknesses (1)

CWE-119

Buffer Overflow

References (3)

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

Link	Providers	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