CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
CVE-2025-49832 (GCVE-0-2025-49832)
Vulnerability from cvelistv5 – Published: 2025-08-01 17:57 – Updated: 2025-08-01 18:29
VLAI
Title
Asterisk is Vulnerable to Remote DoS and possible RCE Attacks During Memory Allocation
Summary
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/asterisk/asterisk/security/adv… | x_refsource_CONFIRM |
Impacted products
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CVE-2025-52424 (GCVE-0-2025-52424)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 20:47
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-2025-52426 (GCVE-0-2025-52426)
Vulnerability from cvelistv5 – Published: 2026-01-02 14:53 – Updated: 2026-01-02 19:25
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 5.2.7.3256 build 20250913 and later
QuTS hero h5.2.7.3256 build 20250913 and later
QuTS hero h5.3.1.3250 build 20250912 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 , < 5.2.7.3256 build 20250913
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.7.3256 build 20250913
(custom)
Affected: h5.3.x , < h5.3.1.3250 build 20250912 (custom) |
Credits
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CVE-2025-52427 (GCVE-0-2025-52427)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 20:46
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)
|
Credits
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CVE-2025-52428 (GCVE-0-2025-52428)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 20:46
VLAI
Title
QTS
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
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 | |
|---|---|---|---|
| QNAP Systems Inc. | QTS |
Affected:
5.2.x , < 5.2.6.3195 build 20250715
(custom)
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CVE-2025-52430 (GCVE-0-2025-52430)
Vulnerability from cvelistv5 – Published: 2026-01-02 14:53 – Updated: 2026-01-02 19:24
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 5.2.7.3256 build 20250913 and later
QuTS hero h5.2.7.3256 build 20250913 and later
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Severity
SSVC
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Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
2 products
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|---|---|---|---|
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Affected:
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|
|
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CVE-2025-52431 (GCVE-0-2025-52431)
Vulnerability from cvelistv5 – Published: 2026-01-02 14:53 – Updated: 2026-01-02 19:23
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 5.2.7.3256 build 20250913 and later
QuTS hero h5.2.7.3256 build 20250913 and later
QuTS hero h5.3.1.3250 build 20250912 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 , < 5.2.7.3256 build 20250913
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.7.3256 build 20250913
(custom)
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CVE-2025-52432 (GCVE-0-2025-52432)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 20:46
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
and later
QuTS hero h5.2.6.3195 build 20250715 and later
QuTS hero h5.3.0.3192 build 20250716 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)
Unaffected: h5.3.x , < h5.3.0.3192 build 20250716 (custom) |
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CVE-2025-52433 (GCVE-0-2025-52433)
Vulnerability from cvelistv5 – Published: 2025-10-03 18:11 – Updated: 2025-10-03 19:13
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
(custom)
|
|
| QNAP Systems Inc. | QuTS hero |
Affected:
h5.2.x , < h5.2.6.3195 build 20250715
(custom)
|
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CVE-2025-52585 (GCVE-0-2025-52585)
Vulnerability from cvelistv5 – Published: 2025-08-13 14:46 – Updated: 2025-08-13 19:43
VLAI
Title
BIG-IP Client SSL profile vulnerability
Summary
When a BIG-IP LTM Client SSL profile is configured on a virtual server with SSL Forward Proxy enabled and Anonymous Diffie-Hellman (ADH) ciphers enabled, undisclosed requests can cause the Traffic Management Microkernel (TMM) to terminate.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://my.f5.com/manage/s/article/K000141436 | vendor-advisory |
Impacted products
Date Public
2025-08-13 14:00
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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.