CVE-2026-64775

A memory initialization issue was addressed with improved memory handling

Critical · published July 27, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
51.2
In the wild
Unconfirmed
What it is

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.

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
0.00665 · 51.2th percentile
Published
2026-07-27T20:11Z
EPSS history
Timeline
  • 27 JUL 20:11Z
    A memory initialization issue was addressed with improved memory handling
    cvelistv5