CVE-2026-24721: CWE-476 in QNAP Systems Inc. File Station 5
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
CVSS v4.0
Score 5.3medium
Affected software
QNAP Systems Inc.
File Station 5
pkg:github/qnap/FileStation5Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-476) involves a NULL pointer dereference in File Station 5 by QNAP Systems Inc. An attacker who has obtained a user account can trigger the flaw remotely, resulting in a denial-of-service attack. The issue affects versions from 5.5.0 up to but not including 5.5.6.5243. The vendor has released a fix in version 5.5.6.5243.
Potential Impact
The impact is a denial-of-service condition caused by a NULL pointer dereference. Exploitation requires the attacker to have a user account, limiting the attack vector. The CVSS score of 1.3 (low) reflects the low severity and limited impact.
Mitigation Recommendations
Upgrade File Station 5 to version 5.5.6.5243 or later to remediate this vulnerability. The vendor has provided an official fix in this version.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qnap
- Date Reserved
- 2026-01-26T06:41:35.897Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad07e722cdf04f65612bc1b
Added to database: 10/15/2026, 07:19:14 UTC
Last enriched: 10/15/2026, 07:33:33 UTC
Last updated: 10/15/2026, 19:00:27 UTC
Views: 17
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