Medium · CVSS 6.8CVE-2026-84419

Out-of-Bounds WriteCVE-2026-84419

Answer in brief

CVE-2026-84419 records a Medium severity (CVSS 6.8) vulnerability in Out-of-Bounds Write. The current sources do not mark it as known exploited. The current feed maps Citrix/Workspace app for Windows (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 13, 2026Updated Oct 13, 2026Source checked Oct 13, 2026First seen by HOL Oct 13, 2026Material review Oct 13, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Citrix/Workspace app for Windows (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Citrix/Workspace app for Windowsgeneric	>=0 <2603.20 CR \|\| >=0 <LTSR 2607 Hotfix 1 \|\| >=0 <LTSR 2507 CU3 Hotfix 1	2603.20 CR, LTSR 2607 Hotfix 1, LTSR 2507 CU3 Hotfix 1, 2603.20, LTSR

Recommended response

Check inventory. Check lockfiles and deployed manifests for Citrix/Workspace app for Windows.
Review the reported fix. Update Citrix/Workspace app for Windows to 2603.20 CR if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 13, 2026

Sources and claim methodology

Source referencesupport.citrix.com

Upstream source description

Out-of-bounds write vulnerability in Citrix Workspace app for Windows. This issue affects Workspace app for Windows: before 2603.20 CR, before LTSR 2607 Hotfix 1, and before LTSR 2507 CU3 Hotfix 1.

Quoted source text, attributed separately from HOL analysis.