CVE-2026-20687

Published: Mar 25, 2026Modified: Mar 25, 2026

7.1

Vector

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

Exploitability: 1.8 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Tahoe 26.4, tvOS 26.4, watchOS 26.4. An app may be able to cause unexpected system termination or write kernel memory.

Affected (8)

Products: Apple: Ipados, Iphone Os, Macos, Tvos, Watchos

5 products

Configuration A

8 vulnerable

Vulnerable Software	Affected Versions
Apple Ipados	Before 18.7.7
Apple Ipados	From 26.0 to 26.4
Apple Iphone Os	Before 18.7.7
Apple Iphone Os	From 26.0 to 26.4
Apple Macos	From 15.0 to 15.7.5
Apple Macos	From 26.0 to 26.4
Apple Tvos	Before 26.4
Apple Watchos	Before 26.4

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

https://support.apple.com/en-us/126792

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126793

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126794

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126795

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126797

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126798

Source: product-security@apple.com

Release NotesVendor Advisory

Timeline

No history available yet.