QNAP QTS/QuTS hero prior 5.2.6.3195 Build 20250715 null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability was found in QNAP QTS and QuTS hero. It has been classified as problematic. This affects an unknown part. The manipulation leads to null pointer dereference. This vulnerability is listed as CVE-2025-52424. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in QNAP QTS and QuTS hero. It has been rated as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. The summary by CVE is:

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. 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 versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

The weakness was presented by coral as qsa-25-36. The advisory is shared at qnap.com. The identification of this vulnerability is CVE-2025-52424 since 06/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 5.2.6.3195 Build 20250715 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-32368) and CERT Bund (WID-SEC-2025-2199). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • QNAP NAS

Productinfo

Type

Vendor

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: QTS/QuTS hero 5.2.6.3195 Build 20250715

Timelineinfo

06/16/2025 CVE reserved
10/03/2025 +109 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-25-36
Researcher: coral
Status: Confirmed

CVE: CVE-2025-52424 (🔒)
GCVE (CVE): GCVE-0-2025-52424
GCVE (VulDB): GCVE-100-326933
EUVD: 🔒
CERT Bund: WID-SEC-2025-2199 - QNAP NAS QTS und QTS hero: Mehrere Schwachstellen

Entryinfo

Created: 10/03/2025 21:12
Updated: 10/09/2025 06:39
Changes: 10/03/2025 21:12 (69), 10/04/2025 11:54 (1), 10/06/2025 13:39 (7), 10/09/2025 06:39 (11)
Complete: 🔍
Cache ID: 216::103

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