CVE-2026-78547: Out-of-Bounds Write

Q: Which releases contain the fix?

The issue is fixed in Citrix Workspace app for Windows 2603.11 Current Release, 2507.1 LTSR CU3, and LTSR 2607. Versions earlier than those releases are affected.

Published Sep 11, 2026

Updated

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

This issue affects Citrix Workspace app for Windows: before 2603.11 Current Release (CR), before 2507.1 LTSR CU3, and before LTSR 2607.

Affected Software

1 affected component

Citrix Citrix Workspace app for Windows<2603.11, <2507.1, <2607

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade Citrix Workspace app for Windows to a version that resolves this vulnerability.
Fixed in 2603.11
Upgrade
Upgrade Citrix Workspace app for Windows to a version that resolves this vulnerability.
Fixed in 2507.1
Upgrade
Upgrade Citrix Workspace app for Windows to a version that resolves this vulnerability.
Fixed in 2607

Event History

Sep 11, 2026

CVE Published

via MITRE·07:07 PM

Data Sourced

via MITRE·07:07 PM

DescriptionWeakness

Frequently Asked Questions

Which releases contain the fix?