CVE-2026-20700

moderate-risk

Published 2026-02-11

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.

Do I need to act?

0.39% chance of exploitation

EPSS score — low exploit probability

CISA KEV: actively exploited in the wild

On the Known Exploited Vulnerabilities catalog — federal agencies must patch

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (6)

Ipados

Iphone Os

Macos

Tvos

Visionos

Watchos

Affected Vendors

Apple

References (6)

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

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

Release Notes https://support.apple.com/en-us/126351

Release Notes https://support.apple.com/en-us/126352

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

US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-...

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 8/34 · Low

Exposure 13/34 · Low