---
id: CVE-2023-4734
title: Integer Overflow or Wraparound in GitHub repository vim/vim prior to 9.0.1846.
summary: Integer Overflow or Wraparound in GitHub repository vim/vim prior to 9.0.1846.
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-190
vendor: neovim
product: neovim
affected:
  - 'neovim >= 0.7.0, < 0.10.0'
  - vim < 9.0.1846
  - macos < 14.1
patched:
  - neovim 0.10.0
  - vim 9.0.1846
  - macos 14.1
published: '2023-09-02'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T15:39:17.740'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-4734'
references:
  - url: 'http://seclists.org/fulldisclosure/2023/Oct/24'
    label: security@huntr.dev
  - url: 'https://github.com/vim/vim/commit/4c6fe2e2ea62469642ed1d80b16d39e616b25cf5'
    label: security@huntr.dev
  - url: 'https://huntr.dev/bounties/688e4382-d2b6-439a-a54e-484780f82217'
    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/4c6fe2e2ea62469642ed1d80b16d39e616b25cf5'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://huntr.dev/bounties/688e4382-d2b6-439a-a54e-484780f82217'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://support.apple.com/kb/HT213984'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00579
epssPercentile: 0.46108
ingestedAt: '2026-06-29T13:24:33.872Z'
---

## Overview

Integer Overflow or Wraparound in GitHub repository vim/vim prior to 9.0.1846.

## Affected

- `neovim >= 0.7.0, < 0.10.0`
- `vim < 9.0.1846`
- `macos < 14.1`

## Remediation

Upgrade past the affected range:

- `neovim 0.10.0`
- `vim 9.0.1846`
- `macos 14.1`