CVE-2025-43299

libc: An app may be able to cause a denial-of-service

CVE-2025-43299 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: Routine.

Routine

CVSS

5.5

MEDIUM

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0023

14th percentile

A denial-of-service issue was addressed with improved validation.

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:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Vendor advisory
https://support.apple.com/en-us/125110

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