CVE-2026-20620

critical

Description

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

References

https://support.apple.com/en-us/126350

https://support.apple.com/en-us/126349

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

Details

Source: Mitre, NVD

Published: 2026-02-11

Updated: 2026-02-12

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Severity: Critical

EPSS

EPSS: 0.00017