CVE-2026-64703

A use after free issue was addressed with improved memory management

Critical · published July 27, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
46.4
In the wild
Unconfirmed
What it is

A use after free issue was addressed with improved memory management. 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 a denial-of-service.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00569 · 46.4th percentile
Published
2026-07-27T20:12Z
EPSS history
Timeline
  • 27 JUL 20:12Z
    A use after free issue was addressed with improved memory management
    cvelistv5