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.

6769 vulnerabilities reference this CWE, most recent first.

CVE-2026-10198 (GCVE-0-2026-10198)

Vulnerability from cvelistv5 – Published: 2026-05-31 22:15 – Updated: 2026-06-01 14:59
VLAI
Title
Assimp glTFImporter glTFImporter.cpp ImportMeshes null pointer dereference
Summary
A flaw has been found in Assimp up to 6.0.4. Affected by this vulnerability is the function Assimp::glTFImporter::ImportMeshes of the file glTFImporter.cpp of the component glTFImporter. This manipulation causes null pointer dereference. The attack is restricted to local execution. The exploit has been published and may be used. The project tagged the reported issue as bug.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-01 14:59 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Assimp Affected: 6.0.0
Affected: 6.0.1
Affected: 6.0.2
Affected: 6.0.3
Affected: 6.0.4
    cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*
Credits
TYGLS (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-10197 (GCVE-0-2026-10197)

Vulnerability from cvelistv5 – Published: 2026-05-31 22:00 – Updated: 2026-06-01 13:25
VLAI
Title
Assimp TF File glTF2Importer.cpp ImportEmbeddedTextures null pointer dereference
Summary
A vulnerability was detected in Assimp up to 6.0.4. Affected is the function glTF2Importer::ImportEmbeddedTextures in the library code/AssetLib/glTF2/glTF2Importer.cpp of the component TF File Handler. The manipulation results in null pointer dereference. The attack is only possible with local access. The exploit is now public and may be used. It is advisable to implement a patch to correct this issue. The pull request to fix this issue awaits acceptance.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-01 13:24 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a Assimp Affected: 6.0.0
Affected: 6.0.1
Affected: 6.0.2
Affected: 6.0.3
Affected: 6.0.4
    cpe:2.3:a:assimp:assimp:*:*:*:*:*:*:*:*
Credits
TYGLS (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-9759 (GCVE-0-2026-9759)

Vulnerability from cvelistv5 – Published: 2026-05-27 18:33 – Updated: 2026-05-27 19:36
VLAI
Title
NULL Pointer Dereference in Wireshark
Summary
ROHC protocol dissector crash in Wireshark 4.6.0 to 4.6.5 and 4.4.0 to 4.4.15 allows denial of service
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 2026-05-27 19:35 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.6 (semver)
Affected: 4.4.0 , < 4.4.16 (semver)
Create a notification for this product.
Credits
Arjun Basnet @ Securin Labs
Show details on NVD website
To clipboard 

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CVE-2026-9752 (GCVE-0-2026-9752)

Vulnerability from cvelistv5 – Published: 2026-06-09 22:27 – Updated: 2026-06-10 18:30
VLAI
Title
GeometryCollection with strict-winding polygon causes server crash during 2dsphere index key generation
Summary
An authorized user could trigger a server crash by running a query with a 2dsphere index on a field that stores a GeoJSON GeometryCollection containing a Polygon with a strict-winding CRS. Strict-winding polygons are intentionally unsupported for indexing, but the guard that rejects them does not inspect members of a GeometryCollection, allowing the unsafe path to be reached which ends with an ensuing null-pointer dereference.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/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 2026-06-10 18:30 UTC
CWE
  • CWE-476 - NULL pointer dereference
Assigner
References
Impacted products
Vendor Product Version
MongoDB MongoDB Server Affected: 8.3.0 , < 8.3.3 (semver)
Affected: 8.2.0 , < 8.2.10 (semver)
Affected: 8.0.0 , < 8.0.24 (semver)
Affected: 7.0.0 , < 7.0.35 (semver)
Create a notification for this product.
Credits
muhammaddaffa
Show details on NVD website
To clipboard 

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CVE-2026-9743 (GCVE-0-2026-9743)

Vulnerability from cvelistv5 – Published: 2026-06-09 21:59 – Updated: 2026-06-10 13:50
VLAI
Title
Aggregation sub-pipeline null dereference may allow DoS via crafted getMore
Summary
In MongoDB Server 8.0, an aggregation stage can leave its _subPipeline field null during processing of certain pipelines. If a getMore is subsequently issued on the same cursor, the server may dereference this null sub-pipeline when reattaching to the operation context, accessing an invalid address and crashing the process. This issue allows an authenticated user who can run aggregation pipelines to cause a denial of service by issuing a specially crafted aggregation followed by getMore on affected versions.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/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 2026-06-10 13:50 UTC
CWE
  • CWE-476 - NULL pointer dereference
Assigner
References
Impacted products
Vendor Product Version
MongoDB MongoDB server Affected: 8.0.0 , < 8.0.24 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-9716 (GCVE-0-2026-9716)

Vulnerability from cvelistv5 – Published: 2026-06-25 15:02 – Updated: 2026-06-25 15:49
VLAI
Summary
CWE-476 NULL Pointer Dereference vulnerability exists that could cause a denial-of-service condition, rendering the device’s HMI and configuration functionality unavailable when malformed requests are received over exposed network interfaces.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 15:49 UTC
CWE
  • CWE-476 - NULL pointer dereference
Assigner
References
Impacted products
Vendor Product Version
Schneider Electric PowerLogic™ P7 Affected: Version V02.003.001.000 and prior
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Show details on NVD website
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CVE-2026-9639 (GCVE-0-2026-9639)

Vulnerability from cvelistv5 – Published: 2026-06-26 15:39 – Updated: 2026-06-26 16:02
VLAI
Title
Authenticated Denial of Service via Malicious Backup Tarball in LXD
Summary
Nil-pointer dereference in CreateCustomVolumeFromBackup in LXD up to version 6.8 and 5.21 on Linux allows an authenticated user with can_create_storage_volumes permissions to cause a denial of service via a specially crafted custom-volume backup tarball that omits the expires_at snapshot field.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/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 2026-06-26 16:01 UTC
CWE
  • CWE-476 - NULL pointer dereference
Assigner
References
Impacted products
Vendor Product Version
Canonical LXD Affected: 5.21.0 , < 5.21.5 (semver)
Affected: 6.0 , < 6.9 (semver)
Create a notification for this product.
Show details on NVD website
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CVE-2026-9567 (GCVE-0-2026-9567)

Vulnerability from cvelistv5 – Published: 2026-05-26 17:45 – Updated: 2026-05-26 18:23 X_Open Source
VLAI
Title
GPAC MP4Box isom_intern.c MergeFragment null pointer dereference
Summary
A security flaw has been discovered in GPAC up to 2.4.0. Affected is the function MergeFragment of the file src/isomedia/isom_intern.c of the component MP4Box. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The patch is identified as 525bf1af642c30af04e4df5345e6d798c0a4d8a1. It is advisable to implement a patch to correct this issue.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 18:22 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a GPAC Affected: 2.0
Affected: 2.1
Affected: 2.2
Affected: 2.3
Affected: 2.4.0
    cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*
Credits
fczhang (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-9529 (GCVE-0-2026-9529)

Vulnerability from cvelistv5 – Published: 2026-05-26 04:15 – Updated: 2026-05-26 12:45 X_Open Source
VLAI
Title
GNU LibreDWG Dwggrep Utility dwggrep.c match_BLOCK_HEADER null pointer dereference
Summary
A security flaw has been discovered in GNU LibreDWG up to 0.14. The affected element is the function match_BLOCK_HEADER of the file dwggrep.c of the component Dwggrep Utility. Performing a manipulation results in null pointer dereference. The attack requires a local approach. The exploit has been released to the public and may be used for attacks.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 12:44 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
GNU LibreDWG Affected: 0.1
Affected: 0.2
Affected: 0.3
Affected: 0.4
Affected: 0.5
Affected: 0.6
Affected: 0.7
Affected: 0.8
Affected: 0.9
Affected: 0.10
Affected: 0.11
Affected: 0.12
Affected: 0.13
Affected: 0.14
    cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
pwn3rd (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-9503 (GCVE-0-2026-9503)

Vulnerability from cvelistv5 – Published: 2026-05-25 21:00 – Updated: 2026-05-26 12:49 X_Open Source
VLAI
Title
GNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference
Summary
A security flaw has been discovered in GNU LibreDWG up to 0.14. This impacts the function dwg_next_entity of the file src/decode.c of the component DWG File Handler. The manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is identified as 8f03865f37f5d4ffd616fef802acc980be54d300. Upgrading the affected component is advised.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-26 12:49 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
GNU LibreDWG Affected: 0.1
Affected: 0.2
Affected: 0.3
Affected: 0.4
Affected: 0.5
Affected: 0.6
Affected: 0.7
Affected: 0.8
Affected: 0.9
Affected: 0.10
Affected: 0.11
Affected: 0.12
Affected: 0.13
Affected: 0.14
    cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
pwn3rd (VulDB User)
Show details on NVD website
To clipboard 

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      "descriptions": [
        {
          "lang": "en",
          "value": "A security flaw has been discovered in GNU LibreDWG up to 0.14. This impacts the function dwg_next_entity of the file src/decode.c of the component DWG File Handler. The manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is identified as 8f03865f37f5d4ffd616fef802acc980be54d300. Upgrading the affected component is advised."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 1.7,
            "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "NULL Pointer Dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-404",
              "description": "Denial of Service",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-25T21:00:16.085Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-365485 | GNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/365485"
        },
        {
          "name": "VDB-365485 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/365485/cti"
        },
        {
          "name": "Submit #814260 | LibreDWG Project LibreDWG \u003c= 0.14, main branch up to commit 6d6a339 (2026-04-10) NULL Pointer Dereference (CWE-476)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/814260"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/LibreDWG/libredwg/issues/1245"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/LibreDWG/libredwg/commit/8f03865f37f5d4ffd616fef802acc980be54d300"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://www.gnu.org/"
        }
      ],
      "tags": [
        "x_open-source"
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-05-25T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-05-25T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-05-25T12:10:02.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "GNU LibreDWG DWG File decode.c dwg_next_entity null pointer dereference"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-9503",
    "datePublished": "2026-05-25T21:00:16.085Z",
    "dateReserved": "2026-05-25T10:04:25.840Z",
    "dateUpdated": "2026-05-26T12:49:51.105Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
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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