CVE-2026-65405CWE-457

CVE-2026-65405

Medium · published September 15, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
5.3
In the wild
Unconfirmed
What it is

A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to determine kernel memory layout.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00163 · 5.3th percentile
Weakness
CWE-457 · Use of Uninitialized Variable
Published
2026-09-15T01:17Z
Affected products (7)
ProductVersionsFixed in
apple/ipados< 26.726.7
apple/iphone_os< 26.726.7
apple/macos≥ 15.0, < 15.815.8
apple/macos≥ 26.0, < 26.726.7
apple/tvos< 27.027.0
apple/visionos< 27.027.0
apple/watchos< 27.027.0
References (8)
https://support.apple.com/en-us/149034 · [email protected]https://support.apple.com/en-us/149035 · [email protected]https://support.apple.com/en-us/149036 · [email protected]https://support.apple.com/en-us/149037 · [email protected]https://support.apple.com/en-us/149038 · [email protected]https://support.apple.com/en-us/149041 · [email protected]https://support.apple.com/en-us/149042 · [email protected]https://support.apple.com/en-us/149043 · [email protected]
EPSS history
Timeline
  • 16 SEP 04:29Z
    EPSS moved — → 0%
    epss
  • 14 SEP 20:51Z
    A memory initialization issue was addressed with improved memory handling
    cvelistv5