CVE-2025-43406 Information disclosure in macOS

Medium 5.5 Published Updated

An application can access sensitive user data due to a logic issue in macOS, requiring a system update to mitigate.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-43406?

CVE-2025-43406 is a medium-severity vulnerability in Apple Macos, published on 12 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Tahoe 26.1. An app may be able to access sensitive user data.

Weakness: CWE-497

Which versions are affected by CVE-2025-43406?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2025-43406?

No fix has been published for CVE-2025-43406 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-43406 being exploited?

There is no known exploitation of CVE-2025-43406 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-4f42-626f-cqm7.

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