Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

1661 vulnerabilities reference this CWE, most recent first.

CVE-2023-0190 (GCVE-0-2023-0190)

Vulnerability from cvelistv5 – Published: 2023-04-22 02:19 – Updated: 2025-02-13 16:38
VLAI
Summary
NVIDIA GPU Display Driver for Linux contains a vulnerability in the kernel mode layer, where a NULL pointer dereference may lead to denial of service.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 19:18 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
nvidia CNA
References
Impacted products
Vendor Product Version
NVIDIA NVIDIA GPU Display Driver Affected: All versions prior to and including 15.1, 13.6, 11.11, and all versions prior to and including February 2023 release
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CVE-2023-0122 (GCVE-0-2023-0122)

Vulnerability from cvelistv5 – Published: 2023-01-17 00:00 – Updated: 2025-04-04 18:50
VLAI
Summary
A NULL pointer dereference vulnerability in the Linux kernel NVMe functionality, in nvmet_setup_auth(), allows an attacker to perform a Pre-Auth Denial of Service (DoS) attack on a remote machine. Affected versions v6.0-rc1 to v6.0-rc3, fixed in v6.0-rc4.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-04 18:50 UTC
CWE
Assigner
redhat CNA
References
Impacted products
Vendor Product Version
n/a Kernel Affected: Linux kernel 6.0-rc4
Show details on NVD website
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CVE-2022-50998 (GCVE-0-2022-50998)

Vulnerability from cvelistv5 – Published: 2026-08-25 15:15 – Updated: 2026-09-08 14:57
VLAI

This CVE ID has been rejected as a duplicate.

Replaced by CVE-2022-40304

Replaced by CVE-2022-40303

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CVE-2022-48606 (GCVE-0-2022-48606)

Vulnerability from cvelistv5 – Published: 2023-09-26 01:27 – Updated: 2024-09-24 14:37
VLAI
Summary
Stability-related vulnerability in the binder background management and control module. Successful exploitation of this vulnerability may affect availability.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-24 14:36 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
huawei CNA
References
Impacted products
Vendor Product Version
Huawei HarmonyOS Affected: 3.0.0
Affected: 2.1.0
Affected: 2.0.1
Affected: 2.0.0
Create a notification for this product.
Huawei EMUI Affected: 13.0.0
Affected: 12.0.1
Affected: 12.0.0
Affected: 11.0.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-48509 (GCVE-0-2022-48509)

Vulnerability from cvelistv5 – Published: 2023-07-06 12:38 – Updated: 2024-11-19 17:00
VLAI
Summary
Race condition vulnerability due to multi-thread access to mutually exclusive resources in Huawei Share. Successful exploitation of this vulnerability may cause the program to exit abnormally.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-19 17:00 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
huawei CNA
References
Impacted products
Vendor Product Version
Huawei HarmonyOS Affected: 2.0.0
Affected: 2.0.1
Create a notification for this product.
Huawei EMUI Affected: 12.0.0
Affected: 12.0.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2022-43972 (GCVE-0-2022-43972)

Vulnerability from cvelistv5 – Published: 2023-01-09 00:00 – Updated: 2025-04-09 14:22
VLAI
Title
Null pointer dereference in Linksys WRT54GL
Summary
A null pointer dereference vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A null pointer dereference in the soap_action function within the upnp binary can be triggered by an unauthenticated attacker via a malicious POST request invoking the AddPortMapping action.
Severity
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-09 14:21 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
trellix CNA
References
Impacted products
Vendor Product Version
Linksys WRT54GL Wireless-G Broadband Router Affected: Firmware , ≤ 4.30.18.006 (custom)
Create a notification for this product.
Credits
Jessie Chick of Trellix ARC
Show details on NVD website
To clipboard 

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CVE-2022-43603 (GCVE-0-2022-43603)

Vulnerability from cvelistv5 – Published: 2022-12-23 23:03 – Updated: 2025-04-14 18:10
VLAI
Summary
A denial of service vulnerability exists in the ZfileOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to denial of service. An attacker can provide a malicious file to trigger this vulnerability.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-14 18:10 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
talos CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2022-43595 (GCVE-0-2022-43595)

Vulnerability from cvelistv5 – Published: 2022-12-23 23:03 – Updated: 2025-04-14 18:32
VLAI
Summary
Multiple denial of service vulnerabilities exist in the image output closing functionality of OpenImageIO Project OpenImageIO v2.4.4.2. Specially crafted ImageOutput Objects can lead to multiple null pointer dereferences. An attacker can provide malicious multiple inputs to trigger these vulnerabilities.This vulnerability applies to writing .fits files.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-14 18:32 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
talos CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2022-43594 (GCVE-0-2022-43594)

Vulnerability from cvelistv5 – Published: 2022-12-23 23:03 – Updated: 2025-02-13 16:33
VLAI
Summary
Multiple denial of service vulnerabilities exist in the image output closing functionality of OpenImageIO Project OpenImageIO v2.4.4.2. Specially crafted ImageOutput Objects can lead to multiple null pointer dereferences. An attacker can provide malicious multiple inputs to trigger these vulnerabilities.This vulnerability applies to writing .bmp files.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
talos CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2022-43593 (GCVE-0-2022-43593)

Vulnerability from cvelistv5 – Published: 2022-12-23 23:03 – Updated: 2025-04-14 18:34
VLAI
Summary
A denial of service vulnerability exists in the DPXOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to null pointer dereference. An attacker can provide malicious input to trigger this vulnerability.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-14 18:34 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
talos CNA
References
Impacted products
Show details on NVD website
To clipboard 

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      "descriptions": [
        {
          "lang": "en",
          "value": "A denial of service vulnerability exists in the DPXOutput::close() functionality of OpenImageIO Project OpenImageIO v2.4.4.2. A specially crafted ImageOutput Object can lead to null pointer dereference. An attacker can provide malicious input to trigger this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476: NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-05-30T05:07:42.353Z",
        "orgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
        "shortName": "talos"
      },
      "references": [
        {
          "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1652",
          "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2022-1652"
        },
        {
          "url": "https://www.debian.org/security/2023/dsa-5384"
        },
        {
          "url": "https://security.gentoo.org/glsa/202305-33"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
    "assignerShortName": "talos",
    "cveId": "CVE-2022-43593",
    "datePublished": "2022-12-23T23:03:51.372Z",
    "dateReserved": "2022-10-21T00:00:00.000Z",
    "dateUpdated": "2025-04-14T18:34:46.657Z",
    "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.

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