CVE-2026-24723: 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) in QNAP File Station 5 involves a NULL pointer dereference that can be exploited by a remote attacker who has obtained a user account. Exploitation results in a denial-of-service attack against the affected system. The vulnerability has a CVSS 4.0 base score of 1.3, indicating low severity. The vendor fixed the issue in version 5.5.6.5243 of File Station 5.
Potential Impact
An attacker with a valid user account can exploit this vulnerability to cause a denial-of-service condition, potentially disrupting service availability. There is no indication of code execution or data compromise. The low CVSS score reflects limited impact.
Mitigation Recommendations
Upgrade File Station 5 to version 5.5.6.5243 or later, where this vulnerability has been fixed. Applying this official patch fully mitigates the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qnap
- Date Reserved
- 2026-01-26T06:41:35.898Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad07e722cdf04f65612bc1d
Added to database: 10/15/2026, 07:19:14 UTC
Last enriched: 10/15/2026, 07:33:23 UTC
Last updated: 10/15/2026, 19:00:27 UTC
Views: 18
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