QNAP File Station 5.5.6.4741/5.5.6.4791/5.5.6.4847 User Account null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in QNAP File Station. This issue affects some unknown processing of the component User Account Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is tracked as CVE-2025-29879. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in QNAP File Station and classified as problematic. This vulnerability affects an unknown functionality of the component User Account Handler. 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. CVE summarizes:

A NULL pointer dereference vulnerability has been reported to affect File Station 5. 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: File Station 5 5.5.6.4907 and later

The weakness was disclosed by coral as qsa-25-19. The advisory is shared for download at qnap.com. This vulnerability was named CVE-2025-29879 since 03/12/2025. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.5.6.4907 eliminates this vulnerability.

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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: 4.3
VulDB Meta Temp Score: 4.1

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

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: 🔒

Upgrade: File Station 5.5.6.4907

Timelineinfo

03/12/2025 CVE reserved
08/29/2025 +169 days Advisory disclosed
08/29/2025 +0 days VulDB entry created
08/29/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: qnap.com

Advisory: qsa-25-19
Researcher: coral
Status: Confirmed

CVE: CVE-2025-29879 (🔒)
GCVE (CVE): GCVE-0-2025-29879
GCVE (VulDB): GCVE-100-321952

Entryinfo

Created: 08/29/2025 23:24
Changes: 08/29/2025 23:24 (35), 08/29/2025 23:25 (34)
Complete: 🔍
Cache ID: 216::103

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