QNAP Qsync Central up to 5.0.0.1 null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in QNAP Qsync Central and classified as problematic. The affected element is an unknown function. This manipulation causes null pointer dereference. The identification of this vulnerability is CVE-2025-47210. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in QNAP Qsync Central. It has been declared as problematic. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

A NULL pointer dereference vulnerability has been reported to affect Qsync Central. 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: Qsync Central 5.0.0.2 ( 2025/07/31 ) and later

The weakness was shared by coral as qsa-25-35. It is possible to read the advisory at qnap.com. This vulnerability is known as CVE-2025-47210 since 05/02/2025. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 5.0.0.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-32354). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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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: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CVSSv2info

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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: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Qsync Central 5.0.0.2

Timelineinfo

05/02/2025 CVE reserved
10/03/2025 +154 days Advisory disclosed
10/03/2025 +0 days VulDB entry created
10/09/2025 +6 days VulDB entry last update

Sourcesinfo

Vendor: qnap.com

Advisory: qsa-25-35
Researcher: coral
Status: Confirmed

CVE: CVE-2025-47210 (🔒)
GCVE (CVE): GCVE-0-2025-47210
GCVE (VulDB): GCVE-100-326959
EUVD: 🔒

Entryinfo

Created: 10/03/2025 21:19
Updated: 10/09/2025 05:47
Changes: 10/03/2025 21:19 (68), 10/04/2025 11:54 (1), 10/09/2025 05:47 (11)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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