CVE-2026-53564 Arbitrary file read and write
Attackers can read and write arbitrary files on Citrix UniconOS systems, potentially compromising data integrity and confidentiality.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-53564?
CVE-2026-53564 is a medium-severity path traversal vulnerability in Citrix UniconOS, published on 13 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Vulnerability in Citrix UniconOS leading to Arbitrary file read and write
This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
Weakness: CWE-22
Which versions are affected by CVE-2026-53564?
How do I fix CVE-2026-53564?
No fix has been published for CVE-2026-53564 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-53564 being exploited?
There is no known exploitation of CVE-2026-53564 in the wild and no public exploit code.
Sources
Also known as GHSA-m79h-7jrq-gcwj.