Improper input validation in macOS - CVE-2025-43445

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Main Vulnerability Database Vulnerabilities #VU117995

Improper input validation in macOS - CVE-2025-43445

Published: November 4, 2025


Vulnerability identifier: #VU117995
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-43445
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to insufficient input validation in CoreText. A local application can trick the victim into opening a specially crafted file and perform unexpected app termination or corrupt process memory.


Affected software

macOS
visionOS
tvOS
iPadOS
Apple iOS
watchOS

How to mitigate CVE-2025-43445

Install update from vendor's website.

macOS - addressed in versions 26.1 25B78, 14.8.2 23J126, 15.7.2 24G325
visionOS - update to 26.1
tvOS - update to 26.1 23J580
iPadOS - addressed in versions 18.7.2 22H124, 26.1 23B85
Apple iOS - addressed in versions 18.7.2 22H124, 26.1 23B85
watchOS - update to 26.1 23S37

External References

Related Security Bulletins