CVE-2026-20700

Name: CVE-2026-20700
Creator: NVD / NIST
Published: 2026-02-11T23:16:10.67+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 1.32%

Last modified Jun 17, 2026

CVE-2026-20700 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.32%

67.2th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Mar 5, 2026.

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 26.3
Apple	Iphone Os	< 26.3
Apple	Macos	< 26.3
Apple	Tvos	< 26.3
Apple	Visionos	< 26.3
Apple	Watchos	< 26.3

References

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

Timeline

Published: Feb 11, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-20700?

How severe is CVE-2026-20700?

CVE-2026-20700 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2026-20700?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-20700?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST