---
id: CVE-2026-84420
title: >-
  Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.


  This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before
  LTSR 2607, and before LTSR 2507 CU3.
summary: >-
  Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.


  This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before
  LTSR 2607, and before LTSR 2507 CU3.
severity: medium
cwe:
  - CWE-125
published: '2026-10-13'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T19:17:21.930'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84420'
references:
  - url: >-
      https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697181
    label: secure@citrix.com
tags:
  - nvd
  - cve.org
epss: 0.00113
epssPercentile: 0.01403
ingestedAt: '2026-10-13T23:03:54.750Z'
vendor: Citirx
product: Citrix Workspace app for Windows
affected:
  - citrix_workspace_app_for_windows < 2603.20 CR
  - citrix_workspace_app_for_windows < LTSR 2607
  - citrix_workspace_app_for_windows < LTSR 2507 CU3
cvss: 5.8
cvssVector: 'CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T18:26:33.901287Z'
cvssSource: cna
---

## Overview

Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.

This issue affects Citrix Workspace app for Windows: before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.