# CVE-2026-24722: QNAP File Station 5 NULL pointer dereference

Source: https://junglewise.ai/threats/cve-2026-24722-a-null-pointer-dereference-vulnerability-has-been-reported-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-15. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-24722 · Severity: medium · CVSS 6.5 · Published 2026-10-15

File Station 5 is a file management application for QNAP NAS devices. A NULL pointer dereference flaw allows authenticated remote attackers to crash the application, causing a denial-of-service condition that disrupts access to stored files and data.

Technologies: [QNAP File Station](https://junglewise.ai/threats/technologies/file-station), [QNAP File Station 5](https://junglewise.ai/threats/technologies/qnap-file-station-5). Vendors: [QNAP](https://junglewise.ai/threats/vendors/qnap).

## Quick answers

**Is CVE-2026-24722 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-24722 being exploited in the wild.

**How severe is CVE-2026-24722?** Medium severity, with a CVSS score of 6.5, published 15 October 2026.

**Which products and versions are affected?** QNAP File Station 5 before 5.5.6.5243.

**Is there a fix for CVE-2026-24722?** Yes: fixed in File Station 5 5.5.6.5243 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-24722 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-24722?** Check whether you run QNAP File Station or QNAP File Station 5 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 File Station 5 5.5.6.5243 and later

## Technical details

A NULL pointer dereference vulnerability in File Station 5 allows an authenticated remote attacker to trigger a crash by providing crafted input to an unspecified vulnerable component. The attack requires valid user account credentials and results in denial of service. The vulnerability has been patched in version 5.5.6.5243 and later.

## Affected products

- QNAP File Station 5 before 5.5.6.5243

## Timeline

- 2026-10-15: disclosed

## References

- [https://www.qnap.com/en/app-release-notes?keyword=FileStation5&app=FileStation5&product-line=nas](https://www.qnap.com/en/app-release-notes?keyword=FileStation5&app=FileStation5&product-line=nas)

## Related threats

- [QNAP File Station 5 NULL pointer dereference](https://junglewise.ai/threats/cve-2026-24723-a-null-pointer-dereference-vulnerability-has-been-reported-to)
- [QNAP File Station 5 NULL pointer dereference](https://junglewise.ai/threats/cve-2026-24721-a-null-pointer-dereference-vulnerability-has-been-reported-to)
- [QNAP File Station resource exhaustion vulnerability](https://junglewise.ai/threats/cve-2026-24720-qnap-file-station-resource-exhaustion-vulnerability)
- [QNAP File Station NULL pointer dereference in File Station 6](https://junglewise.ai/threats/cve-2026-22899-qnap-file-station-null-pointer-dereference-in-file-station-6)
- [A cross-site scripting (XSS) vulnerability has been reported to affect File Station 5. If a remote attacker gains a…](https://junglewise.ai/threats/cve-2025-57706-a-cross-site-scripting-xss-vulnerability-has-been-reported-to)