CVE-2023-27957 Memory corruption in macOS

High 7.8 Published 8 May 2023 Updated 29 Jan 2025

A buffer overflow in macOS allows attackers to execute arbitrary code or cause app termination via a maliciously crafted file.

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-2023-27957?

CVE-2023-27957 is a high-severity memory corruption vulnerability in Apple Macos, published on 8 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.3. Processing a maliciously crafted file may lead to unexpected app termination or arbitrary code execution.

Weakness: CWE-120

Which versions are affected by CVE-2023-27957?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2023-27957?

No fix has been published for CVE-2023-27957 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-27957 being exploited?

There is no known exploitation of CVE-2023-27957 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-j42j-4v6g-8gm8.