# CVE-2025-53412: A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user…

Source: https://junglewise.ai/threats/cve-2025-53412-a-null-pointer-dereference-vulnerability-has-been-reported-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-07  
License: CC BY 4.0 with a link back

CVE-2025-53412 · Severity: medium · CVSS 6.5 · Published 2025-11-07

A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack.

We have already fixed the vulnerability in the following version:
File Station 5 5.5.6.5018 and later

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

## Quick answers

**Is CVE-2025-53412 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-53412 being exploited in the wild.

**How severe is CVE-2025-53412?** Medium severity, with a CVSS score of 6.5, published 7 November 2025.

**Which products and versions are affected?** QNAP File Station. The advisory does not name versions.

**Is there a fix for CVE-2025-53412?** 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.

**Am I affected by CVE-2025-53412?** Check whether you run QNAP File Station. 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.

## Affected products

- QNAP File Station

## 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 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)