QNAP Systems File Station 5.5.6.4741/5.5.6.4933/5.5.6.5018/5.5.6.5068 null pointer dereference

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in QNAP Systems File Station. It has been declared as problematic. Affected is an unknown function. The manipulation results in null pointer dereference. This vulnerability was named CVE-2025-54163. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in QNAP Systems File Station. It has been classified as problematic. Affected is some unknown processing. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. CVE summarizes:

A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains an administrator 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 5.5.6.5166 and later

The weakness was presented by coral as qsa-26-03. The advisory is available at qnap.com. This vulnerability is traded as CVE-2025-54163 since 07/17/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are necessary for exploitation. The technical details are unknown and an exploit is not available.

Upgrading to version 5.5.6.5166 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

QNAP Systems

Name

File Station

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.7

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: File Station 5.5.6.5166

Timelineinfo

07/17/2025 CVE reserved
02/11/2026 +209 days Advisory disclosed
02/11/2026 +0 days VulDB entry created
02/12/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: qsa-26-03
Researcher: coral
Status: Confirmed

CVE: CVE-2025-54163 (🔒)
GCVE (CVE): GCVE-0-2025-54163
GCVE (VulDB): GCVE-100-345498

Entryinfo

Created: 02/11/2026 15:03
Updated: 02/12/2026 21:42
Changes: 02/11/2026 15:03 (69), 02/12/2026 15:56 (1), 02/12/2026 21:42 (11)
Complete: 🔍
Cache ID: 216::103