Description
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 5.5.6.5243 and later
Published: 2026-10-15
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Patch Now
AI Analysis

Impact

A NULL pointer dereference flaw in QNAP File Station 5 allows a remote attacker who has authenticated with a user account to trigger a crash, causing a denial‑of‑service condition. The weakness is a classic application boundaries error (CWE‑476) that can be triggered with valid input.

Affected Systems

QNAP Systems Inc. offers File Station 5. All versions prior to 5.5.6.5243 are impacted; the bug was fixed in 5.5.6.5243 and later. The product is available as a QNAP NAS application.

Risk and Exploitability

The CVSS score of 5.3 indicates moderate impact, and the EPSS score of less than 1% suggests a very low likelihood of exploitation. The vulnerability is not currently listed in the CISA Known Exploited Vulnerabilities catalogue. The attack requires the attacker to have authenticated access to a user account in File Station 5, after which the exploit can be executed remotely to force the service to crash.

Generated by OpenCVE AI on October 16, 2026 at 22:05 UTC.

Remediation

Vendor Solution

We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later

OpenCVE Recommended Actions

  • Upgrade File Station 5 to version 5.5.6.5243 or newer, which contains the fix.
  • If an upgrade is not immediately possible, restrict remote access to the File Station web interface and limit file‑access permissions for user accounts until the patch can be applied.
  • Continuously monitor system logs for repeated crashes or abnormal traffic that may indicate exploitation attempts.
  • Keep QNAP firmware and all included app releases updated to minimize other security gaps.

Generated by OpenCVE AI on October 16, 2026 at 22:05 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 16 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Qnap
Qnap file Station
CPEs cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*
Vendors & Products Qnap
Qnap file Station
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Thu, 15 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Description 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 5.5.6.5243 and later
Title Null Pointer Dereference in File Station 5
Weaknesses CWE-476
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Subscriptions

Qnap File Station
cve-icon MITRE

Status: PUBLISHED

Assigner: qnap

Published:

Updated: 2026-10-15T14:51:37.356Z

Reserved: 2026-01-26T06:41:35.898Z

Link: CVE-2026-24722

cve-icon Vulnrichment

Updated: 2026-10-15T14:51:23.269Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-15T07:17:59.880

Modified: 2026-10-16T17:18:18.600

Link: CVE-2026-24722

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-17T16:45:11Z

Weaknesses