CVE-2026-20679

State: Published
Severity: 4.3 Medium
Published: Aug 21, 2026
Updated: Aug 21, 2026
Reserved: Nov 11, 2025

Description

The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. Processing a maliciously crafted file may lead to unexpected app termination.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	CISA-ADP

Weaknesses

CWE-125 Out-of-bounds Read
CWE-416 Use After Free

Affected Products

Product	Versions
macOSApple	before 14.8.5Affected before 15.7.5Affected before 26.4Affected

References

https://support.apple.com/en-us/126794
https://support.apple.com/en-us/126795
https://support.apple.com/en-us/126796

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