Vulnerability-Lookup

CVE-2025-53011 (GCVE-0-2025-53011)

Vulnerability from cvelistv5 – Published: 2025-08-01 17:58 – Updated: 2025-08-01 18:16

Title

MaterialX is Vulnerable to NULL Pointer Dereference due to Unchecked implGraphOutput

Summary

MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers. In version 1.39.2, when parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files. An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file. This is fixed in version 1.39.3.

Severity

2 (Low)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-01 18:16 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7834 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/AcademySoftwareFoundation/Mate…	x_refsource_CONFIRM
https://github.com/AcademySoftwareFoundation/Mate…	x_refsource_MISC
https://github.com/AcademySoftwareFoundation/Mate…	x_refsource_MISC
https://github.com/ShielderSec/poc/tree/main/CVE-…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
AcademySoftwareFoundation	MaterialX	Affected: >= 1.39.2, < 1.39.3	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-53011

Vulnerability from fkie_nvd - Published: 2025-08-01 18:15 - Updated: 2026-06-17 09:37

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/AcademySoftwareFoundation/MaterialX/commit/7ac1c71de5187dc29793292b5a8dc6d784192ecf	Patch
security-advisories@github.com	https://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3	Release Notes
security-advisories@github.com	https://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-7qw8-3vmf-gj32	Exploit, Vendor Advisory
security-advisories@github.com	https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011	Exploit

Impacted products

	Vendor	Product	Version
	linuxfoundation	materialx	1.39.2

JSON

To clipboard

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      "affectedData": [
        {
          "product": "MaterialX",
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              "status": "affected",
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          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-53011",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-08-01T18:16:26.186303Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-08-01T18:15:54.827",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/commit/7ac1c71de5187dc29793292b5a8dc6d784192ecf"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-7qw8-3vmf-gj32"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit"
      ],
      "url": "https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-7QW8-3VMF-GJ32

Vulnerability from github – Published: 2025-07-31 18:31 – Updated: 2025-08-01 18:36

Summary

MaterialX Null Pointer Dereference in MaterialXCore Shader Generation due to Unchecked implGraphOutput

Details

Summary

When parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files.

Details

In source/MaterialXCore/Material.cpp, the following code extracts the output nodes for a given implementation graph:

   InterfaceElementPtr impl = materialNodeDef->getImplementation();
            if (impl && impl->isA<NodeGraph>())
            {
                NodeGraphPtr implGraph = impl->asA<NodeGraph>();
                for (OutputPtr defOutput : materialNodeDef->getOutputs())
                {
                    if (defOutput->getType() == MATERIAL_TYPE_STRING)
                    {
                        OutputPtr implGraphOutput = implGraph->getOutput(defOutput->getName());
                        for (GraphIterator it = implGraphOutput->traverseGraph().begin(); it != GraphIterator::end(); ++it)
                        {
                            ElementPtr upstreamElem = it.getUpstreamElement();
                            if (!upstreamElem)
                            {
                                it.setPruneSubgraph(true);
                                continue;
                            }
                            NodePtr upstreamNode = upstreamElem->asA<Node>();
                            if (upstreamNode && upstream

However, when defining the implGraphOutput variable by getting the output node, the code doesn't check whether its value is null before accessing its iterator traverseGraph(). This leads to a potential null pointer dereference.

PoC

Please download nullptr_implgraph.mtlx from the following link:

https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011

build/bin/MaterialXView --material nullptr_implgraph.mtlx

Impact

An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file.

Severity

2.0 (Low)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "MaterialX"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.39.2"
            },
            {
              "fixed": "1.39.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.39.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-53011"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-07-31T18:31:23Z",
    "nvd_published_at": "2025-08-01T18:15:54Z",
    "severity": "LOW"
  },
  "details": "### Summary\n\nWhen parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files.\n\n### Details\n\nIn `source/MaterialXCore/Material.cpp`, the following code extracts the output nodes for a given implementation graph:\n\n```cpp\n   InterfaceElementPtr impl = materialNodeDef-\u003egetImplementation();\n            if (impl \u0026\u0026 impl-\u003eisA\u003cNodeGraph\u003e())\n            {\n                NodeGraphPtr implGraph = impl-\u003easA\u003cNodeGraph\u003e();\n                for (OutputPtr defOutput : materialNodeDef-\u003egetOutputs())\n                {\n                    if (defOutput-\u003egetType() == MATERIAL_TYPE_STRING)\n                    {\n                        OutputPtr implGraphOutput = implGraph-\u003egetOutput(defOutput-\u003egetName());\n                        for (GraphIterator it = implGraphOutput-\u003etraverseGraph().begin(); it != GraphIterator::end(); ++it)\n                        {\n                            ElementPtr upstreamElem = it.getUpstreamElement();\n                            if (!upstreamElem)\n                            {\n                                it.setPruneSubgraph(true);\n                                continue;\n                            }\n                            NodePtr upstreamNode = upstreamElem-\u003easA\u003cNode\u003e();\n                            if (upstreamNode \u0026\u0026 upstream\n```\n\nHowever, when defining the `implGraphOutput` variable by getting the output node, the code doesn\u0027t check whether its value is null before accessing its iterator `traverseGraph()`. This leads to a potential null pointer dereference.\n\n### PoC\n\nPlease download `nullptr_implgraph.mtlx` from the following link:\n\nhttps://github.com/ShielderSec/poc/tree/main/CVE-2025-53011\n\n`build/bin/MaterialXView --material nullptr_implgraph.mtlx`\n\n### Impact\n\nAn attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file.",
  "id": "GHSA-7qw8-3vmf-gj32",
  "modified": "2025-08-01T18:36:10Z",
  "published": "2025-07-31T18:31:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-7qw8-3vmf-gj32"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53011"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/commit/7ac1c71de5187dc29793292b5a8dc6d784192ecf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MaterialX Null Pointer Dereference in MaterialXCore Shader Generation due to Unchecked implGraphOutput"
}

PYSEC-2026-1607

Vulnerability from pysec - Published: 2026-07-07 16:02 - Updated: 2026-07-07 16:02

Details

Summary

When parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files.

Details

In source/MaterialXCore/Material.cpp, the following code extracts the output nodes for a given implementation graph:

   InterfaceElementPtr impl = materialNodeDef->getImplementation();
            if (impl && impl->isA<NodeGraph>())
            {
                NodeGraphPtr implGraph = impl->asA<NodeGraph>();
                for (OutputPtr defOutput : materialNodeDef->getOutputs())
                {
                    if (defOutput->getType() == MATERIAL_TYPE_STRING)
                    {
                        OutputPtr implGraphOutput = implGraph->getOutput(defOutput->getName());
                        for (GraphIterator it = implGraphOutput->traverseGraph().begin(); it != GraphIterator::end(); ++it)
                        {
                            ElementPtr upstreamElem = it.getUpstreamElement();
                            if (!upstreamElem)
                            {
                                it.setPruneSubgraph(true);
                                continue;
                            }
                            NodePtr upstreamNode = upstreamElem->asA<Node>();
                            if (upstreamNode && upstream

PoC

Please download nullptr_implgraph.mtlx from the following link:

https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011

build/bin/MaterialXView --material nullptr_implgraph.mtlx

Impact

An attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file.

Severity

2.0 (Low)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Impacted products

Name	purl
materialx	pkg:pypi/materialx

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "materialx",
        "purl": "pkg:pypi/materialx"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.39.2"
            },
            {
              "fixed": "1.39.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.39.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-53011",
    "GHSA-7qw8-3vmf-gj32"
  ],
  "details": "### Summary\n\nWhen parsing shader nodes in a MTLX file, the MaterialXCore code accesses a potentially null pointer, which can lead to crashes with maliciously crafted files.\n\n### Details\n\nIn `source/MaterialXCore/Material.cpp`, the following code extracts the output nodes for a given implementation graph:\n\n```cpp\n   InterfaceElementPtr impl = materialNodeDef-\u003egetImplementation();\n            if (impl \u0026\u0026 impl-\u003eisA\u003cNodeGraph\u003e())\n            {\n                NodeGraphPtr implGraph = impl-\u003easA\u003cNodeGraph\u003e();\n                for (OutputPtr defOutput : materialNodeDef-\u003egetOutputs())\n                {\n                    if (defOutput-\u003egetType() == MATERIAL_TYPE_STRING)\n                    {\n                        OutputPtr implGraphOutput = implGraph-\u003egetOutput(defOutput-\u003egetName());\n                        for (GraphIterator it = implGraphOutput-\u003etraverseGraph().begin(); it != GraphIterator::end(); ++it)\n                        {\n                            ElementPtr upstreamElem = it.getUpstreamElement();\n                            if (!upstreamElem)\n                            {\n                                it.setPruneSubgraph(true);\n                                continue;\n                            }\n                            NodePtr upstreamNode = upstreamElem-\u003easA\u003cNode\u003e();\n                            if (upstreamNode \u0026\u0026 upstream\n```\n\nHowever, when defining the `implGraphOutput` variable by getting the output node, the code doesn\u0027t check whether its value is null before accessing its iterator `traverseGraph()`. This leads to a potential null pointer dereference.\n\n### PoC\n\nPlease download `nullptr_implgraph.mtlx` from the following link:\n\nhttps://github.com/ShielderSec/poc/tree/main/CVE-2025-53011\n\n`build/bin/MaterialXView --material nullptr_implgraph.mtlx`\n\n### Impact\n\nAn attacker could intentionally crash a target program that uses MaterialX by sending a malicious MTLX file.",
  "id": "PYSEC-2026-1607",
  "modified": "2026-07-07T16:02:59.500150Z",
  "published": "2026-07-07T16:02:59.500150Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/security/advisories/GHSA-7qw8-3vmf-gj32"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53011"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/commit/7ac1c71de5187dc29793292b5a8dc6d784192ecf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AcademySoftwareFoundation/MaterialX/releases/tag/v1.39.3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ShielderSec/poc/tree/main/CVE-2025-53011"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/materialx"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-7qw8-3vmf-gj32"
    }
  ],
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MaterialX Null Pointer Dereference in MaterialXCore Shader Generation due to Unchecked implGraphOutput"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-53011 (GCVE-0-2025-53011)

FKIE_CVE-2025-53011

GHSA-7QW8-3VMF-GJ32

Summary

Details

PoC

Impact

PYSEC-2026-1607

Summary

Details

PoC

Impact

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Nomenclature

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