CVE-2026-64739CWE-787

CVE-2026-64739

High · published July 28, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
43.0
In the wild
Unconfirmed
What it is

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, 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 attacker may be able to cause unexpected app termination.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00515 · 43.0th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-07-28T01:17Z
Affected products (8)
ProductVersionsFixed in
apple/ipados< 26.626.6
apple/iphone_os< 26.626.6
apple/macos≥ 14.0, < 14.8.814.8.8
apple/macos≥ 15.0, < 15.7.815.7.8
apple/macos≥ 26.0, < 26.626.6
apple/tvos< 26.626.6
apple/visionos< 26.626.6
apple/watchos< 26.626.6
References (8)
https://support.apple.com/en-us/128066 · [email protected]https://support.apple.com/en-us/128067 · [email protected]https://support.apple.com/en-us/128068 · [email protected]https://support.apple.com/en-us/128069 · [email protected]https://support.apple.com/en-us/128070 · [email protected]https://support.apple.com/en-us/128071 · [email protected]https://support.apple.com/en-us/128072 · [email protected]https://support.apple.com/en-us/148287 · [email protected]
EPSS history
Timeline
  • 27 JUL 20:12Z
    An out-of-bounds write issue was addressed with improved bounds checking
    cvelistv5