QNAP Systems QTS/QuTS hero 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 marked as problematic has been reported in QNAP Systems QTS and QuTS hero. This impacts an unknown function. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2025-47205. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in QNAP Systems QTS and QuTS hero (the affected version is unknown). Affected by this vulnerability is an unknown code. 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 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 5.2.8.3332 build 20251128 and later QuTS hero h5.2.8.3321 build 20251117 and later

The weakness was published by coral as qsa-26-05. It is possible to read the advisory at qnap.com. This vulnerability is known as CVE-2025-47205 since 05/02/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

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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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: 🔒

Timelineinfo

05/02/2025 CVE reserved
02/11/2026 +285 days Advisory disclosed
02/11/2026 +0 days VulDB entry created
02/27/2026 +16 days VulDB entry last update

Sourcesinfo

Advisory: qsa-26-05
Researcher: coral
Status: Confirmed

CVE: CVE-2025-47205 (🔒)
GCVE (CVE): GCVE-0-2025-47205
GCVE (VulDB): GCVE-100-345475

Entryinfo

Created: 02/11/2026 14:36
Updated: 02/27/2026 14:48
Changes: 02/11/2026 14:36 (66), 02/27/2026 14:48 (12)
Complete: 🔍
Cache ID: 216::103

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