Vulnerability-Lookup

PYSEC-2025-161

Vulnerability from pysec - Published: 2025-03-25 08:15 - Updated: 2026-05-21 14:54

Details

A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. This affects the function Assimp::CSMImporter::InternReadFile of the file code/AssetLib/CSM/CSMLoader.cpp of the component CSM File Handler. The manipulation leads to out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impacted products

Name	purl
pyassimp	pkg:pypi/pyassimp

Aliases

CVE-2025-2750

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "pyassimp",
        "purl": "pkg:pypi/pyassimp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "5.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1",
        "3.3",
        "4.1.1",
        "4.1.2",
        "4.1.3",
        "4.1.4",
        "5.2.5"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-2750"
  ],
  "details": "A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. This affects the function Assimp::CSMImporter::InternReadFile of the file code/AssetLib/CSM/CSMLoader.cpp of the component CSM File Handler. The manipulation leads to out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.",
  "id": "PYSEC-2025-161",
  "modified": "2026-05-21T14:54:38.995288Z",
  "published": "2025-03-25T08:15:19.203Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?id.300855"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/?submit.517783"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/assimp/assimp/issues/6011"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/assimp/assimp/issues/6011#issue-2877369004"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/?ctiid.300855"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-2750 (GCVE-0-2025-2750)

Vulnerability from cvelistv5 – Published: 2025-03-25 07:31 – Updated: 2025-03-31 17:38

Title

Open Asset Import Library Assimp CSM File CSMLoader.cpp InternReadFile out-of-bounds write

Summary

Severity

5.3 (Medium)


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

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-31 17:36 UTC

CWE

CWE-787 - Out-of-bounds Write
CWE-119 - Memory Corruption

Assigner

VulDB mitre root

References

5 references

URL	Tags
https://vuldb.com/?id.300855	vdb-entrytechnical-description
https://vuldb.com/?ctiid.300855	signaturepermissions-required
https://vuldb.com/?submit.517783	third-party-advisory
https://github.com/assimp/assimp/issues/6011	issue-tracking
https://github.com/assimp/assimp/issues/6011#issu…	exploitissue-tracking

Impacted products

1 product

Vendor	Product	Version
Open Asset Import Library	Assimp	Affected: 5.4.3

Credits

d3ng03 (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-2750",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-31T17:36:47.193325Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-31T17:38:57.671Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "CSM File Handler"
          ],
          "product": "Assimp",
          "vendor": "Open Asset Import Library",
          "versions": [
            {
              "status": "affected",
              "version": "5.4.3"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "d3ng03 (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability, which was classified as critical, was found in Open Asset Import Library Assimp 5.4.3. This affects the function Assimp::CSMImporter::InternReadFile of the file code/AssetLib/CSM/CSMLoader.cpp of the component CSM File Handler. The manipulation leads to out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used."
        },
        {
          "lang": "de",
          "value": "Es wurde eine kritische Schwachstelle in Open Asset Import Library Assimp 5.4.3 gefunden. Es betrifft die Funktion Assimp::CSMImporter::InternReadFile der Datei code/AssetLib/CSM/CSMLoader.cpp der Komponente CSM File Handler. Mittels dem Manipulieren mit unbekannten Daten kann eine out-of-bounds write-Schwachstelle ausgenutzt werden. Der Angriff kann \u00fcber das Netzwerk erfolgen. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 7.5,
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-03-25T07:31:03.681Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-300855 | Open Asset Import Library Assimp CSM File CSMLoader.cpp InternReadFile out-of-bounds write",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.300855"
        },
        {
          "name": "VDB-300855 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.300855"
        },
        {
          "name": "Submit #517783 | Open Asset Import Library Assimp \u003e=5.4.3 Out-of-bounds Write",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.517783"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/assimp/assimp/issues/6011"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/assimp/assimp/issues/6011#issue-2877369004"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-03-24T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-03-24T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2025-03-24T17:54:08.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Open Asset Import Library Assimp CSM File CSMLoader.cpp InternReadFile out-of-bounds write"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-2750",
    "datePublished": "2025-03-25T07:31:03.681Z",
    "dateReserved": "2025-03-24T16:47:17.254Z",
    "dateUpdated": "2025-03-31T17:38:57.671Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

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.