CVE-2026-84566

Published: Sep 14, 2026Modified: Sep 18, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

The 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. A local attacker may be able to cause unexpected system termination or corrupt kernel memory.

Affected (4)

Products: Apple: Ipados, Iphone Os, Macos

3 products

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Apple Ipados	version < 26.7
Apple Iphone Os	version < 26.7
Apple Macos	15.0 ≤ version < 15.8
Apple Macos	26.0 ≤ version < 26.7

Related CWEs

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (5)

https://support.apple.com/en-us/149034

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/149035

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/149041

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/149042

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/149043

Source: product-security@apple.com

Release NotesVendor Advisory

Timeline

No history available yet.