# CVE-2026-53562: Citrix UniconOS link following vulnerability

Source: https://junglewise.ai/threats/cve-2026-53562-improper-link-resolution-before-file-access-link-following  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-53562 · Severity: info · Published 2026-10-13

Citrix UniconOS, a terminal access platform, contains a link following vulnerability that could allow an attacker with local access to resolve symbolic links and access files they should not be able to reach. This could lead to unauthorized disclosure of sensitive information on the affected system.

Technologies: [Citrix UniconOS](https://junglewise.ai/threats/technologies/uniconos). Vendors: [Citrix](https://junglewise.ai/threats/vendors/citrix).

## Quick answers

**Is CVE-2026-53562 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-53562 being exploited in the wild.

**How severe is CVE-2026-53562?** Informational severity, published 13 October 2026.

**Which products and versions are affected?** Citrix UniconOS before 2607 CR and before 2603 LTSR CU2.

**Is there a fix for CVE-2026-53562?** Yes: fixed in 2607 CR, 2603 LTSR CU2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-53562 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-53562?** Check whether you run Citrix UniconOS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2607 CR, 2603 LTSR CU2

## Technical details

An improper link resolution vulnerability in Citrix UniconOS fails to properly validate symbolic links before file access operations, allowing local attackers to follow links to read or access arbitrary files. The vulnerability requires local access to the system. A fix is available in version 2607 CR and 2603 LTSR CU2.

## Affected products

- Citrix UniconOS before 2607 CR and before 2603 LTSR CU2

## Timeline

- 2026-10-13: disclosed

## References

- [https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697187](https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697187)

## Related threats

- [Citrix UniconOS arbitrary file read and write](https://junglewise.ai/threats/cve-2026-53564-vulnerability-in-citrix-uniconos-leading-to-arbitrary-file-read)
- [Citrix UniconOS persistent command execution](https://junglewise.ai/threats/cve-2026-53563-vulnerability-in-citrix-uniconos-leading-to-persistent-command)