CVE-2026-20621

Published: Feb 11, 2026Modified: Apr 2, 2026

5.5

Vector

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

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. An app may be able to cause unexpected system termination or corrupt kernel memory.

Affected (5)

Products: Apple: Ipados, Iphone Os, Macos

3 products

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Apple Ipados	Before 26.3
Apple Iphone Os	Before 26.3
Apple Macos	Before 14.8.4
Apple Macos	From 15.0 to 15.7.4
Apple Macos	From 26.0 to 26.3

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 (6)

https://support.apple.com/en-us/126346

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126347

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126348

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126349

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126350

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/en-us/126353

Source: product-security@apple.com

Release NotesVendor Advisory

Timeline

No history available yet.