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CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
CVE-2025-52853 (GCVE-0-2025-52853)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 19:12
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
(custom)
|
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CVE-2025-52854 (GCVE-0-2025-52854)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 19:11
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
(custom)
|
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CVE-2025-52855 (GCVE-0-2025-52855)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 19:11
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
(custom)
|
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CVE-2025-52857 (GCVE-0-2025-52857)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:12 – Updated: 2025-10-03 19:11
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
(custom)
|
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CVE-2025-52858 (GCVE-0-2025-52858)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:12 – Updated: 2025-10-03 19:11
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
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|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
(custom)
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CVE-2025-52859 (GCVE-0-2025-52859)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:12 – Updated: 2025-10-03 19:11
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
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Affected:
5.2.x , < 5.2.6.3195 build 20250715
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|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
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|
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CVE-2025-52860 (GCVE-0-2025-52860)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:12 – Updated: 2025-10-03 19:10
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
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Affected:
5.2.x , < 5.2.6.3195 build 20250715
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|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
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|
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CVE-2025-52862 (GCVE-0-2025-52862)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:14 – Updated: 2025-10-03 19:10
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
(custom)
|
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CVE-2025-52865 (GCVE-0-2025-52865)
Vulnerability from cvelistv5 – Published: 2025-11-07 15:15 – Updated: 2025-11-07 15:55
VLAI
Title
File Station 5
Summary
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 5.5.6.5018 and later
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
5.5.x , < 5.5.6.5018
(custom)
|
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CVE-2025-52866 (GCVE-0-2025-52866)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:14 – Updated: 2025-10-03 19:10
VLAI
Title
QTS, QuTS hero
Summary
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
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
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|
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Mitigation ID: MIT-56
Phase: Implementation
Description:
- For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Phase: Requirements
Description:
- Select a programming language that is not susceptible to these issues.
Mitigation
Phase: Implementation
Description:
- Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Phase: Architecture and Design
Description:
- Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Phase: Implementation
Description:
- Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.