n/a — security advisory

{
  "id": "fb785e3f64d296783ba8442babb34d8d02d0c8252337bf60d4b0d9ffa9b774bb",
  "url": "https://www.cve.org/CVERecord?id=CVE-2025-55640",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2025-55640",
    "summary": "A heap buffer overflow in the stbl_AddSize function (isomedia/stbl_write.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.",
    "evidence": "cve:CVE-2025-55640",
    "products": [
      {
        "name": {
          "value": "n/a",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-55640",
      "aliases": [
        "CVE-2025-55640"
      ],
      "metrics": [],
      "affected": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "modified": "2026-10-26T17:26:18.665Z",
      "provider": "cve",
      "references": [
        "https://github.com/gpac/gpac/issues/3261",
        "https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4",
        "https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc",
        "https://infosec.exchange/@sigdevel/116769271709415444"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CVE Program Container",
            "references": [
              {
                "url": "http://www.openwall.com/lists/oss-security/2026/10/17/2"
              }
            ],
            "providerMetadata": {
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE",
              "dateUpdated": "2026-10-17T18:07:59.322Z"
            }
          },
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "cvssV3_1": {
                  "scope": "UNCHANGED",
                  "version": "3.1",
                  "baseScore": 5.5,
                  "attackVector": "LOCAL",
                  "baseSeverity": "MEDIUM",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "integrityImpact": "NONE",
                  "userInteraction": "REQUIRED",
                  "attackComplexity": "LOW",
                  "availabilityImpact": "HIGH",
                  "privilegesRequired": "NONE",
                  "confidentialityImpact": "NONE"
                }
              },
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2025-55640",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-10-26T17:25:53.826480Z"
                  }
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "lang": "en",
                    "type": "CWE",
                    "cweId": "CWE-122",
                    "description": "CWE-122 Heap-based Buffer Overflow"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-10-26T17:26:18.665Z"
            }
          }
        ],
        "cna": {
          "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
          "shortName": "mitre",
          "dateUpdated": "2026-10-16T18:07:54.649Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-55640",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-cve",
  "document_id": 324473,
  "published_at": "2026-10-16T00:00:00+00:00"
}