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CVE-2026-20700

HIGHCISA KEV

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/11/2026

Last Modified3/25/2026

Sourcekev

Honeypot Sightings0

CISA KEV

VendorApple

ProductMultiple Products

Vulnerability NameApple Multiple Buffer Overflow Vulnerability

KEV Date Added2026-02-12

Remediation Due Date2026-03-05

Ransomware UseUnknown

Affected Products

apple:ipadosapple:iphone_osapple:macosapple:tvosapple:visionosapple:watchos

Weaknesses (CWE)

CWE-119

References

https://support.apple.com/en-us/126346(product-security@apple.com)

https://support.apple.com/en-us/126348(product-security@apple.com)

https://support.apple.com/en-us/126351(product-security@apple.com)

https://support.apple.com/en-us/126352(product-security@apple.com)

https://support.apple.com/en-us/126353(product-security@apple.com)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20700(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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