Common Weakness Enumeration
CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6769 vulnerabilities reference this CWE, most recent first.
CVE-2025-54989 (GCVE-0-2025-54989)
Vulnerability from cvelistv5 – Published: 2025-08-15 15:04 – Updated: 2025-11-03 18:13
VLAI
EPSS
VEX
Title
Firebird XDR Message Parsing NULL Pointer Dereference Denial-of-Service Vulnerability
Summary
Firebird is a relational database. Prior to versions 3.0.13, 4.0.6, and 5.0.3, there is an XDR message parsing NULL pointer dereference denial-of-service vulnerability in Firebird. This specific flaw exists within the parsing of xdr message from client. It leads to NULL pointer dereference and DoS. This issue has been patched in versions 3.0.13, 4.0.6, and 5.0.3.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-15 19:08 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/FirebirdSQL/firebird/security/… | x_refsource_CONFIRM |
| https://github.com/FirebirdSQL/firebird/issues/8554 | x_refsource_MISC |
| https://github.com/FirebirdSQL/firebird/commit/16… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| FirebirdSQL | firebird |
Affected:
< 3.0.13
Affected: < 4.0.6 Affected: < 5.0.3 |
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CVE-2025-54409 (GCVE-0-2025-54409)
Vulnerability from cvelistv5 – Published: 2025-08-14 15:52 – Updated: 2025-11-04 21:12
VLAI
EPSS
VEX
Title
AIDE null pointer dereference when reading incorrectly encoded xattr attributes from database (local DoS)
Summary
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Severity
6.2 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-14 18:43 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/aide/aide/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/aide/aide/commit/54a6d0d9d5f14… | x_refsource_MISC |
| https://github.com/aide/aide/releases/tag/v0.19.2 | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2025… | |
| http://www.openwall.com/lists/oss-security/2025/08/14/8 |
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CVE-2025-54270 (GCVE-0-2025-54270)
Vulnerability from cvelistv5 – Published: 2025-10-15 00:18 – Updated: 2025-10-15 20:09
VLAI
EPSS
VEX
Title
Animate | NULL Pointer Dereference (CWE-476)
Summary
Animate versions 23.0.13, 24.0.10 and earlier are affected by a NULL Pointer Dereference vulnerability that could lead to memory exposure. An attacker could leverage this vulnerability to disclose sensitive memory information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-15 20:09 UTC
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/animate… | vendor-advisory |
Impacted products
Date Public
2025-10-14 17:00
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CVE-2025-54163 (GCVE-0-2025-54163)
Vulnerability from cvelistv5 – Published: 2026-02-11 12:17 – Updated: 2026-02-11 15:04
VLAI
EPSS
VEX
Title
File Station 5
Summary
A NULL pointer dereference vulnerability has been reported to affect File Station 5. 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 version:
File Station 5 5.5.6.5166 and later
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 15:04 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | File Station 5 |
Affected:
5.5.x , < 5.5.6.5166
(custom)
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CVE-2025-54148 (GCVE-0-2025-54148)
Vulnerability from cvelistv5 – Published: 2026-02-11 12:18 – Updated: 2026-02-11 16:58
VLAI
EPSS
VEX
Title
Qsync Central
Summary
A NULL pointer dereference vulnerability has been reported to affect Qsync Central. 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:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 16:58 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | Qsync Central |
Affected:
5.0.x.x , < 5.0.0.4 ( 2026/01/20 )
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CVE-2025-54147 (GCVE-0-2025-54147)
Vulnerability from cvelistv5 – Published: 2026-02-11 12:18 – Updated: 2026-02-11 16:58
VLAI
EPSS
VEX
Title
Qsync Central
Summary
A NULL pointer dereference vulnerability has been reported to affect Qsync Central. 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:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 16:58 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | Qsync Central |
Affected:
5.0.x.x , < 5.0.0.4 ( 2026/01/20 )
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CVE-2025-54146 (GCVE-0-2025-54146)
Vulnerability from cvelistv5 – Published: 2026-02-11 12:18 – Updated: 2026-02-11 16:59
VLAI
EPSS
VEX
Title
Qsync Central
Summary
A NULL pointer dereference vulnerability has been reported to affect Qsync Central. 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:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-11 16:59 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | Qsync Central |
Affected:
5.0.x.x , < 5.0.0.4 ( 2026/01/20 )
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CVE-2025-53817 (GCVE-0-2025-53817)
Vulnerability from cvelistv5 – Published: 2025-07-17 18:12 – Updated: 2025-11-04 21:12
VLAI
EPSS
VEX
Title
GHSL-2025-059 - 7-Zip - Null pointer array write attempt in NArchive::NCom::CHandler::GetStream
Summary
7-Zip is a file archiver with a high compression ratio. 7-Zip supports extracting from Compound Documents. Prior to version 25.0.0, a null pointer dereference in the Compound handler may lead to denial of service. Version 25.0.0 contains a fix cor the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-17 20:25 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
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| http://www.openwall.com/lists/oss-security/2025/07/18/2 |
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CVE-2025-53716 (GCVE-0-2025-53716)
Vulnerability from cvelistv5 – Published: 2025-08-12 17:10 – Updated: 2026-02-13 18:54
VLAI
EPSS
VEX
Title
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Summary
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an authorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-12 19:01 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.7678
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.6216
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.6216
(custom)
|
|
| Microsoft | Windows 11 version 22H2 |
Affected:
10.0.22621.0 , < 10.0.22621.5768
(custom)
|
|
| Microsoft | Windows 11 version 22H3 |
Affected:
10.0.22631.0 , < 10.0.22631.5768
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.5768
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.4946
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.7678
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.7678
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.4052
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.1791
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.4946
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.4946
(custom)
|
Date Public
2025-08-12 07:00
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CVE-2025-53603 (GCVE-0-2025-53603)
Vulnerability from cvelistv5 – Published: 2025-07-05 00:00 – Updated: 2026-01-26 16:05
VLAI
EPSS
VEX
Summary
In Alinto SOPE SOGo 2.0.2 through 5.12.2, sope-core/NGExtensions/NGHashMap.m allows a NULL pointer dereference and SOGo crash via a request in which a parameter in the query string is a duplicate of a parameter in the POST body.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-08 13:11 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
7 references
Impacted products
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Mitigation MIT-56
Implementation
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
Requirements
Select a programming language that is not susceptible to these issues.
Mitigation
Implementation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Architecture and Design
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
Implementation
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.