CVE-2026-78546 Out-of-Bounds Read
An out-of-bounds read in Citrix Workspace for Windows allows attackers to read memory or cause a crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78546?
CVE-2026-78546 is a medium-severity memory corruption vulnerability in Citirx Workspace app for Windows, published on 11 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Out-of-bounds read vulnerability in Citirx Workspace app for Windows.
This issue affects Workspace app for Windows: before 2603.11 Current Release (CR), before 2507.1 LTSR CU3, and before LTSR 2607.
Weakness: CWE-125
Which versions are affected by CVE-2026-78546?
How do I fix CVE-2026-78546?
No fix has been published for CVE-2026-78546 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-78546 being exploited?
There is no known exploitation of CVE-2026-78546 in the wild and no public exploit code.
Sources
Also known as GHSA-gccg-q69r-mpxp.