---
id: CVE-2023-4733
title: Use After Free in GitHub repository vim/vim prior to 9.0.1840.
summary: Use After Free in GitHub repository vim/vim prior to 9.0.1840.
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-416
vendor: neovim
product: neovim
affected:
  - 'neovim >= 0.7.0, < 0.9.2'
  - vim < 9.0.1840
  - fedora = 37
  - fedora = 38
  - fedora = 39
  - macos < 14.1
patched:
  - neovim 0.9.2
  - vim 9.0.1840
  - macos 14.1
published: '2023-09-04'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T15:38:16.497'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-4733'
references:
  - url: 'http://seclists.org/fulldisclosure/2023/Oct/24'
    label: security@huntr.dev
  - url: 'https://github.com/vim/vim/commit/e1dc9a627536304bc4f738c21e909ad9fcf3974c'
    label: security@huntr.dev
  - url: 'https://huntr.dev/bounties/1ce1fd8c-050a-4373-8004-b35b61590217'
    label: security@huntr.dev
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I56ITJAFMFAQ2G3BMGTCGM3GS62V2DTR/
    label: security@huntr.dev
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITRVK4FB74RZDIGTZJXOZMUW6X6F4TNF/
    label: security@huntr.dev
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFE3LDFRZ7EGWA5AU7YHYL62ELBOFZWQ/
    label: security@huntr.dev
  - url: 'https://support.apple.com/kb/HT213984'
    label: security@huntr.dev
  - url: 'http://seclists.org/fulldisclosure/2023/Oct/24'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/vim/vim/commit/e1dc9a627536304bc4f738c21e909ad9fcf3974c'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://huntr.dev/bounties/1ce1fd8c-050a-4373-8004-b35b61590217'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I56ITJAFMFAQ2G3BMGTCGM3GS62V2DTR/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITRVK4FB74RZDIGTZJXOZMUW6X6F4TNF/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PFE3LDFRZ7EGWA5AU7YHYL62ELBOFZWQ/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://support.apple.com/kb/HT213984'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00543
epssPercentile: 0.44525
ingestedAt: '2026-06-29T13:24:33.885Z'
---

## Overview

Use After Free in GitHub repository vim/vim prior to 9.0.1840.

## Affected

- `neovim >= 0.7.0, < 0.9.2`
- `vim < 9.0.1840`
- `fedora = 37`
- `fedora = 38`
- `fedora = 39`
- `macos < 14.1`

## Remediation

Upgrade past the affected range:

- `neovim 0.9.2`
- `vim 9.0.1840`
- `macos 14.1`