CVE-2023-42940 Information disclosure in macOS

Medium 5.7 Published Updated

A session tracking flaw in macOS screen sharing may cause users to unintentionally share incorrect content, leading to information disclosure.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-42940?

CVE-2023-42940 is a medium-severity vulnerability in Apple Macos, published on 19 Dec 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A session rendering issue was addressed with improved session tracking. This issue is fixed in macOS Sonoma 14.2.1. A user who shares their screen may unintentionally share the incorrect content.

Weakness: CWE-200

Which versions are affected by CVE-2023-42940?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2023-42940?

No fix has been published for CVE-2023-42940 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-42940 being exploited?

There is no known exploitation of CVE-2023-42940 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-gx2w-592v-wg4m.

Is CVE-2023-42940 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free