---
id: CVE-2023-1175
title: >-
  Incorrect Calculation of Buffer Size in GitHub repository vim/vim prior to
  9.0.1378.
summary: >-
  Incorrect Calculation of Buffer Size in GitHub repository vim/vim prior to
  9.0.1378.
severity: medium
cvss: 6.6
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H'
cwe:
  - CWE-131
vendor: neovim
product: neovim
affected:
  - debian_linux = 10.0
  - debian_linux = 11.0
  - fedora = 36
  - fedora = 37
  - fedora = 38
  - neovim <= 0.8.3
  - vim < 9.0.1378
patched:
  - vim 9.0.1378
published: '2023-03-04'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T15:37:59.490'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-1175'
references:
  - url: 'https://github.com/vim/vim/commit/c99cbf8f289bdda5d4a77d7ec415850a520330ba'
    label: security@huntr.dev
  - url: 'https://huntr.dev/bounties/7e93fc17-92eb-4ae7-b01a-93bb460b643e'
    label: security@huntr.dev
  - url: 'https://lists.debian.org/debian-lts-announce/2023/06/msg00015.html'
    label: security@huntr.dev
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIAKPMKJ4OZ6NYRZJO7YWMNQL2BICLYV/
    label: security@huntr.dev
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IE44W6WMMREYCW3GJHPSYP7NK2VT5NY6/
    label: security@huntr.dev
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X4KDAU76Z7QNSPKZX2JAJ6O7KIEOXWTL/
    label: security@huntr.dev
  - url: 'https://github.com/vim/vim/commit/c99cbf8f289bdda5d4a77d7ec415850a520330ba'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://huntr.dev/bounties/7e93fc17-92eb-4ae7-b01a-93bb460b643e'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2023/06/msg00015.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2025/03/msg00023.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIAKPMKJ4OZ6NYRZJO7YWMNQL2BICLYV/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IE44W6WMMREYCW3GJHPSYP7NK2VT5NY6/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X4KDAU76Z7QNSPKZX2JAJ6O7KIEOXWTL/
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00448
epssPercentile: 0.38369
ingestedAt: '2026-09-18T15:44:31.547Z'
---

## Overview

Incorrect Calculation of Buffer Size in GitHub repository vim/vim prior to 9.0.1378.

## Affected

- `debian_linux = 10.0`
- `debian_linux = 11.0`
- `fedora = 36`
- `fedora = 37`
- `fedora = 38`
- `neovim <= 0.8.3`
- `vim < 9.0.1378`

## Remediation

Upgrade past the affected range:

- `vim 9.0.1378`