QNAP File Station 5 5.5.6.4741 out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in QNAP File Station 5. This issue affects some unknown processing. Performing a manipulation results in out-of-bounds write. This vulnerability is known as CVE-2025-47206. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in QNAP File Station 5. This affects some unknown processing. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An out-of-bounds write vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to modify or corrupt memory. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4933 and later

The weakness was published by coral as qsa-25-31. The advisory is shared at qnap.com. This vulnerability is uniquely identified as CVE-2025-47206 since 05/02/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 5.5.6.4933 eliminates this vulnerability.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-25778) and CERT Bund (WID-SEC-2025-1907). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • QNAP NAS

Productinfo

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: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
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: File Station 5 5.5.6.4933

Timelineinfo

05/02/2025 CVE reserved
08/18/2025 +108 days Advisory disclosed
08/18/2025 +0 days VulDB entry created
09/12/2025 +25 days VulDB entry last update

Sourcesinfo

Vendor: qnap.com

Advisory: qsa-25-31
Researcher: coral
Status: Confirmed

CVE: CVE-2025-47206 (🔒)
GCVE (CVE): GCVE-0-2025-47206
GCVE (VulDB): GCVE-100-320445
EUVD: 🔒
CERT Bund: WID-SEC-2025-1907 - QNAP NAS (File Station 5): Mehrere Schwachstellen

Entryinfo

Created: 08/18/2025 10:59
Updated: 09/12/2025 18:38
Changes: 08/18/2025 10:59 (68), 08/18/2025 16:03 (1), 08/26/2025 14:45 (7), 08/26/2025 15:04 (1), 09/12/2025 18:38 (11)
Complete: 🔍
Cache ID: 216::103

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