CVE-2026-20700

HIGH

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. An attacker with memory write capability may be able to execute arbitrary code. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 and CVE-2025-43529 were also issued in response to this report.

CVSS v3.1 Score

7.8

HIGH

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

Attack Vector

LOCAL

Complexity

LOW

Privileges

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Published: 2/11/2026Modified: 3/25/2026

Related Intelligence (0)

No articles currently reference this CVE.

References (6)

https://support.apple.com/en-us/126346Release NotesVendor Advisory https://support.apple.com/en-us/126348Release NotesVendor Advisory https://support.apple.com/en-us/126351Release NotesVendor Advisory https://support.apple.com/en-us/126352Release NotesVendor Advisory https://support.apple.com/en-us/126353Release NotesVendor Advisory https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700US Government Resource