---
id: CVE-2026-73075
title: 'Vim is an open source, command line text editor'
summary: >-
  Vim is an open source, command line text editor. From 9.2.0469 until 9.2.0843,
  popup_mark_opacity_zindex() in src/popupwin.c can use a negative w_winrow for
  a text-property-anchored popup with clipwindow and opacity, indexing before
  the …
severity: low
cvss: 3.9
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-124
  - CWE-125
vendor: vim
product: vim
affected:
  - 'vim >= 9.2.0469, < 9.2.0843'
patched:
  - vim 9.2.0843
published: '2026-08-11'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T20:02:42.713'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73075'
references:
  - url: 'https://github.com/vim/vim/security/advisories/GHSA-pmvp-6rcj-98p4'
    label: security-advisories@github.com
  - url: 'https://github.com/vim/vim/security/advisories/GHSA-pmvp-6rcj-98p4'
    label: security-advisories@github.com
  - url: 'https://github.com/vim/vim/security/advisories/GHSA-pmvp-6rcj-98p4'
    label: security-advisories@github.com
  - url: 'https://github.com/vim/vim/security/advisories/GHSA-pmvp-6rcj-98p4'
    label: security-advisories@github.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73075.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-73075'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2514039'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-73075'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73075'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
epss: 0.00094
epssPercentile: 0.0058
ingestedAt: '2026-09-09T21:22:45.527Z'
scores:
  nvd: 3.9
  vendor: 4.4
---

## Overview

Vim is an open source, command line text editor. From 9.2.0469 until 9.2.0843, popup_mark_opacity_zindex() in src/popupwin.c can use a negative w_winrow for a text-property-anchored popup with clipwindow and opacity, indexing before the screen array instead of accounting for w_popup_topoff and causing an out-of-bounds read and conditional write. This issue is fixed in version 9.2.0843.

## Affected

- `vim >= 9.2.0469, < 9.2.0843`

## Remediation

Upgrade past the affected range:

- `vim 9.2.0843`

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-10-06 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73075.json)