CVE-2023-42840 Information disclosure in macOS

Medium 4.3 Published 21 Feb 2024 Updated 4 Nov 2025

A local application can access user-sensitive data due to insufficient checks, requiring an OS update to mitigate.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-42840?

CVE-2023-42840 is a medium-severity vulnerability in Apple Macos, published on 21 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14.1, macOS Monterey 12.7.1, macOS Ventura 13.6.1. An app may be able to access user-sensitive data.

Weakness: CWE-922

Which versions are affected by CVE-2023-42840?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2023-42840?

No fix has been published for CVE-2023-42840 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-42840 being exploited?

There is no known exploitation of CVE-2023-42840 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-vfw6-5cxp-x52m.