# CVE-2026-24720: QNAP File Station resource exhaustion vulnerability

Source: https://junglewise.ai/threats/cve-2026-24720-qnap-file-station-resource-exhaustion-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-10. Updated: 2026-06-10  
License: CC BY 4.0 with a link back

CVE-2026-24720 · Severity: info · CVSS 5.3 · Published 2026-06-10

QNAP File Station is a web-based tool used to manage files on QNAP storage devices. A vulnerability has been identified where an authorized user can consume excessive system resources, potentially leading to a denial-of-service. This could prevent other users or critical system processes from accessing the storage device, impacting business operations and data availability.

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

## Quick answers

**Is CVE-2026-24720 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-24720 being exploited in the wild.

**How severe is CVE-2026-24720?** Informational severity, with a CVSS score of 5.3, published 10 June 2026.

**Which products and versions are affected?** QNAP File Station Versions prior to 5.5.6.5243 (File Station 5 branch).

**Is there a fix for CVE-2026-24720?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-24720 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-24720?** Check whether you run QNAP File Station 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.

## Technical details

An allocation of resources without limits or throttling vulnerability (CWE-770) exists in QNAP File Station 6. The flaw allows a remote attacker with valid user credentials to exhaust system resources, such as memory or CPU, by making specific requests that are not properly throttled. Successful exploitation can lead to a denial-of-service (DoS) condition, preventing other applications or processes from accessing the same resource types. The issue is addressed in File Station 5 version 5.5.6.5243 and later.

## Affected products

- QNAP File Station 6 Versions prior to 5.5.6.5243 (File Station 5 branch)

## Timeline

- 2026-06-10: disclosed
- 2026-06-10: advisory

## References

- [https://www.qnap.com/en/security-advisory/qsa-26-26](https://www.qnap.com/en/security-advisory/qsa-26-26)

## 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-2026-24722-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 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)