CVE-2023-4733 Use After Free in vim/vim
A use-after-free flaw in Vim allows attackers to potentially execute arbitrary code or cause a denial of service via crafted files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-4733?
CVE-2023-4733 is a high-severity use after free vulnerability in Apple Macos, published on 4 Sep 2023. 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
Use After Free in GitHub repository vim/vim prior to 9.0.1840.
Weakness: CWE-416
Which versions are affected by CVE-2023-4733?
It affects 4 products.
Products include Apple Macos, Fedoraproject Fedora, Neovim Neovim, Vim Vim.
How do I fix CVE-2023-4733?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-4733 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-4733 exists.
Other vulnerabilities in Apple Macos
Sources
Also known as ALPINE-CVE-2023-4733, AZL-28657, BELL-CVE-2023-4733, CLSA-2023-1695063163, CLSA-2023-1695063445, CLSA-2025-1737655662 and 4 more.