CVE-2026-43739

Kernel: An app may be able to cause unexpected system termination

CVE-2026-43739 is fixed in Tahoe on 1 platform by Tahoe 26.6 (version 26.6), released July 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.5

MEDIUM

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0016

5th percentile

An out-of-bounds write issue was addressed with improved bounds checking.

Where it's fixed

Product	Fixed in	Fix	Released
macOS
Tahoe	26.6	Tahoe 26.6	Jul 27, 2026

Details

Published
July 27, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Vendor advisory
https://support.apple.com/en-us/128067

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