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.
6609 vulnerabilities reference this CWE, most recent first.
CVE-2021-42733 (GCVE-0-2021-42733)
Vulnerability from cvelistv5 – Published: 2021-11-22 15:22 – Updated: 2025-04-23 19:19
VLAI
EPSS
VEX
Title
Adobe Bridge NULL Pointer Dereference could lead to Application denial-of-service
Summary
Adobe Bridge version 11.1.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. 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 2025-04-23 13:09 UTC
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/bridge/… | x_refsource_MISC |
Impacted products
Date Public
2021-10-26 00:00
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CVE-2021-42528 (GCVE-0-2021-42528)
Vulnerability from cvelistv5 – Published: 2022-05-02 22:24 – Updated: 2025-11-03 19:26
VLAI
EPSS
VEX
Title
XMP-Toolkit Null Pointer Dereference Application denial-of-service
Summary
XMP Toolkit 2021.07 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | XMP Toolkit |
Affected:
unspecified , ≤ 2021.07
(custom)
Affected: unspecified , ≤ None (custom) |
Date Public
2021-10-26 00:00
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CVE-2021-42376 (GCVE-0-2021-42376)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2024-08-04 03:30
VLAI
EPSS
VEX
Summary
A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
Impacted products
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CVE-2021-42373 (GCVE-0-2021-42373)
Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2024-08-04 03:30
VLAI
EPSS
VEX
Summary
A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given
Severity
No CVSS data available.
CWE
Assigner
References
5 references
Impacted products
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CVE-2021-42268 (GCVE-0-2021-42268)
Vulnerability from cvelistv5 – Published: 2021-11-18 16:41 – Updated: 2025-04-23 19:20
VLAI
EPSS
VEX
Title
Adobe Animate FLA File Parsing Null Pointer Dereference Application Denial of Service
Summary
Adobe Animate version 21.0.9 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted FLA file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. 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 2025-04-23 13:10 UTC
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/animate… | x_refsource_MISC |
Impacted products
Date Public
2021-10-26 00:00
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CVE-2021-42264 (GCVE-0-2021-42264)
Vulnerability from cvelistv5 – Published: 2022-03-16 14:03 – Updated: 2025-04-23 18:48
VLAI
EPSS
VEX
Title
Adobe Premiere Pro Null Pointer Dereference Application denial-of-service
Summary
Adobe Premiere Pro 15.4.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. 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 2025-04-23 13:07 UTC
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/premier… | x_refsource_MISC |
Impacted products
Date Public
2021-10-26 00:00
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CVE-2021-42263 (GCVE-0-2021-42263)
Vulnerability from cvelistv5 – Published: 2022-03-16 14:03 – Updated: 2025-04-23 18:49
VLAI
EPSS
VEX
Title
Adobe Premiere Pro Null Pointer Dereference Application denial-of-service
Summary
Adobe Premiere Pro 15.4.1 (and earlier) is affected by a Null pointer dereference vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. 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 2025-04-23 13:07 UTC
CWE
- CWE-476 - NULL Pointer Dereference (CWE-476)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/premier… | x_refsource_MISC |
Impacted products
Date Public
2021-10-26 00:00
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CVE-2021-41524 (GCVE-0-2021-41524)
Vulnerability from cvelistv5 – Published: 2021-10-05 08:40 – Updated: 2024-08-04 03:15
VLAI
EPSS
VEX
Title
null pointer dereference in h2 fuzzing
Summary
While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.
Severity
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://httpd.apache.org/security/vulnerabilities… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2021/10/05/1 | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021102… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/202208-20 | vendor-advisoryx_refsource_GENTOO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
Affected:
2.4.49
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CVE-2021-41217 (GCVE-0-2021-41217)
Vulnerability from cvelistv5 – Published: 2021-11-05 20:55 – Updated: 2024-08-04 03:08
VLAI
EPSS
VEX
Title
Null pointer exception when `Exit` node is not preceded by `Enter` op
Summary
TensorFlow is an open source platform for machine learning. In affected versions the process of building the control flow graph for a TensorFlow model is vulnerable to a null pointer exception when nodes that should be paired are not. This occurs because the code assumes that the first node in the pairing (e.g., an `Enter` node) always exists when encountering the second node (e.g., an `Exit` node). When this is not the case, `parent` is `nullptr` so dereferencing it causes a crash. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
Severity
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tensorflow/tensorflow/security… | x_refsource_CONFIRM |
| https://github.com/tensorflow/tensorflow/commit/0… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tensorflow | tensorflow |
Affected:
>= 2.6.0, < 2.6.1
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CVE-2021-41215 (GCVE-0-2021-41215)
Vulnerability from cvelistv5 – Published: 2021-11-05 20:55 – Updated: 2024-08-04 03:08
VLAI
EPSS
VEX
Title
Null pointer exception in `DeserializeSparse`
Summary
TensorFlow is an open source platform for machine learning. In affected versions the shape inference code for `DeserializeSparse` can trigger a null pointer dereference. This is because the shape inference function assumes that the `serialize_sparse` tensor is a tensor with positive rank (and having `3` as the last dimension). The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.
Severity
5.5 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tensorflow/tensorflow/security… | x_refsource_CONFIRM |
| https://github.com/tensorflow/tensorflow/commit/d… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tensorflow | tensorflow |
Affected:
>= 2.6.0, < 2.6.1
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"name": "https://github.com/tensorflow/tensorflow/commit/d3738dd70f1c9ceb547258cbb82d853da8771850",
"refsource": "MISC",
"url": "https://github.com/tensorflow/tensorflow/commit/d3738dd70f1c9ceb547258cbb82d853da8771850"
}
]
},
"source": {
"advisory": "GHSA-x3v8-c8qx-3j3r",
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2021-41215",
"datePublished": "2021-11-05T20:55:16.000Z",
"dateReserved": "2021-09-15T00:00:00.000Z",
"dateUpdated": "2024-08-04T03:08:31.507Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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.