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Vulnerability Details :

CVE-2025-52433

Summary
Assigner-qnap
Assigner Org ID-2fd009eb-170a-4625-932b-17a53af1051f
Published At-03 Oct, 2025 | 18:11
Updated At-03 Oct, 2025 | 19:13
Rejected At-
Credits

QTS, QuTS hero

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

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
â–¼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:qnap
Assigner Org ID:2fd009eb-170a-4625-932b-17a53af1051f
Published At:03 Oct, 2025 | 18:11
Updated At:03 Oct, 2025 | 19:13
Rejected At:
â–¼CVE Numbering Authority (CNA)
QTS, QuTS hero

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

Affected Products
Vendor
QNAP Systems, Inc.QNAP Systems Inc.
Product
QTS
Default Status
unaffected
Versions
Affected
  • From 5.2.x before 5.2.6.3195 build 20250715 (custom)
Vendor
QNAP Systems, Inc.QNAP Systems Inc.
Product
QuTS hero
Default Status
unaffected
Versions
Affected
  • From h5.2.x before h5.2.6.3195 build 20250715 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-476CWE-476
Type: CWE
CWE ID: CWE-476
Description: CWE-476
Metrics
VersionBase scoreBase severityVector
4.05.1MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Version: 4.0
Base score: 5.1
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-129CAPEC-129
CAPEC-680CAPEC-680
CAPEC ID: CAPEC-129
Description: CAPEC-129
CAPEC ID: CAPEC-680
Description: CAPEC-680
Solutions

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

Configurations
Workarounds
Exploits
Credits
finder
coral
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.qnap.com/en/security-advisory/qsa-25-36
N/A
Hyperlink: https://www.qnap.com/en/security-advisory/qsa-25-36
Resource: N/A
â–¼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
â–¼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@qnapsecurity.com.tw
Published At:03 Oct, 2025 | 19:15
Updated At:08 Oct, 2025 | 19:40

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

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.05.1MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.14.9MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 4.0
Base score: 5.1
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CPE Matches
QNAP Systems, Inc.
qnap
>>qts>>5.2.0.2737
cpe:2.3:o:qnap:qts:5.2.0.2737:build_20240417:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.0.2744
cpe:2.3:o:qnap:qts:5.2.0.2744:build_20240424:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.0.2782
cpe:2.3:o:qnap:qts:5.2.0.2782:build_20240601:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.0.2802
cpe:2.3:o:qnap:qts:5.2.0.2802:build_20240620:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.0.2823
cpe:2.3:o:qnap:qts:5.2.0.2823:build_20240711:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.0.2851
cpe:2.3:o:qnap:qts:5.2.0.2851:build_20240808:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.0.2860
cpe:2.3:o:qnap:qts:5.2.0.2860:build_20240817:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.1.2930
cpe:2.3:o:qnap:qts:5.2.1.2930:build_20241025:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.2.2950
cpe:2.3:o:qnap:qts:5.2.2.2950:build_20241114:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.3.3006
cpe:2.3:o:qnap:qts:5.2.3.3006:build_20250108:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.4.3070
cpe:2.3:o:qnap:qts:5.2.4.3070:build_20250312:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.4.3079
cpe:2.3:o:qnap:qts:5.2.4.3079:build_20250321:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.4.3092
cpe:2.3:o:qnap:qts:5.2.4.3092:build_20250403:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>qts>>5.2.5.3145
cpe:2.3:o:qnap:qts:5.2.5.3145:build_20250526:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.0.2737
cpe:2.3:o:qnap:quts_hero:h5.2.0.2737:build_20240417:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.0.2782
cpe:2.3:o:qnap:quts_hero:h5.2.0.2782:build_20240601:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.0.2789
cpe:2.3:o:qnap:quts_hero:h5.2.0.2789:build_20240607:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.0.2802
cpe:2.3:o:qnap:quts_hero:h5.2.0.2802:build_20240620:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.0.2823
cpe:2.3:o:qnap:quts_hero:h5.2.0.2823:build_20240711:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.0.2851
cpe:2.3:o:qnap:quts_hero:h5.2.0.2851:build_20240808:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.0.2860
cpe:2.3:o:qnap:quts_hero:h5.2.0.2860:build_20240817:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.1.2929
cpe:2.3:o:qnap:quts_hero:h5.2.1.2929:build_20241025:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.1.2940
cpe:2.3:o:qnap:quts_hero:h5.2.1.2940:build_20241105:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.2.2952
cpe:2.3:o:qnap:quts_hero:h5.2.2.2952:build_20241116:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.3.3006
cpe:2.3:o:qnap:quts_hero:h5.2.3.3006:build_20250108:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.4.3070
cpe:2.3:o:qnap:quts_hero:h5.2.4.3070:build_20250312:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.4.3079
cpe:2.3:o:qnap:quts_hero:h5.2.4.3079:build_20250321:*:*:*:*:*:*
QNAP Systems, Inc.
qnap
>>quts_hero>>h5.2.5.3138
cpe:2.3:o:qnap:quts_hero:h5.2.5.3138:build_20250519:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-476Primarysecurity@qnapsecurity.com.tw
CWE ID: CWE-476
Type: Primary
Source: security@qnapsecurity.com.tw
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.qnap.com/en/security-advisory/qsa-25-36security@qnapsecurity.com.tw
Vendor Advisory
Hyperlink: https://www.qnap.com/en/security-advisory/qsa-25-36
Source: security@qnapsecurity.com.tw
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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