CVE-2022-1942 Heap-based Buffer Overflow in vim/vim

High 7.8 Published 31 May 2022 Updated 3 Nov 2025

A heap-based buffer overflow in Vim allows attackers to execute arbitrary code or cause a denial of service via crafted input.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2022-1942?

CVE-2022-1942 is a high-severity memory corruption vulnerability in Apple Macos, published on 31 May 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2022-1942?

It affects 4 products.

Products include Apple Macos, Debian Debian Linux, Fedoraproject Fedora, Vim Vim.

How do I fix CVE-2022-1942?

Upgrade to a fixed version.

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

Is CVE-2022-1942 being exploited?

There is no known exploitation of CVE-2022-1942 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-1942, GHSA-fj94-39w8-g69w, UBUNTU-CVE-2022-1942.