CVE-2026-20620

HIGH

7.7

Description

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.

CVE Details

CVSS v3.1 Score7.7

SeverityHIGH

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/11/2026

Last Modified4/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

apple:macos

Weaknesses (CWE)

CWE-125

References

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

https://support.apple.com/en-us/126349(product-security@apple.com)

https://support.apple.com/en-us/126350(product-security@apple.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.