CVE-2025-43359

Kernel: A UDP server socket bound to a local interface may become bound to all interfaces

CVE-2025-43359 is fixed in 3 products on 1 platform, first by Sequoia 15.7, released September 15, 2025. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

9.8

CRITICAL

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0096

61st percentile

A logic issue was addressed with improved state management.

Where it's fixed

Product	Fixed in	Fix	Released
macOS
Sequoia	15.7	Sequoia 15.7	Sep 15, 2025
Sonoma	14.8	Sonoma 14.8	Sep 15, 2025
Tahoe	26.0	Tahoe 26.0	Sep 15, 2025

Details

Published
September 15, 2025
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor advisory
https://support.apple.com/en-us/125110

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