Vulnerability-Lookup

GHSA-9G23-86WF-5X87

Vulnerability from github – Published: 2026-10-16 21:32 – Updated: 2026-10-17 18:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-55640"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-16T19:16:56Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-9g23-86wf-5x87",
  "modified": "2026-10-17T18:31:08Z",
  "published": "2026-10-16T21:32:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55640"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/issues/3261"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4"
    },
    {
      "type": "WEB",
      "url": "https://infosec.exchange/@sigdevel/116769271709415444"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/10/17/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-55640 (GCVE-0-2025-55640)

Vulnerability from cvelistv5 – Published: 2026-10-16 00:00 – Updated: 2026-10-17 18:07

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.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2349 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/gpac/gpac/issues/3261
https://github.com/sigdevel/pocs/blob/main/res/gp…
https://github.com/gpac/gpac/commit/321624f28d19a…
https://infosec.exchange/@sigdevel/116769271709415444
http://www.openwall.com/lists/oss-security/2026/10/17/2

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-10-17T18:07:59.322Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/10/17/2"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-16T18:07:54.649Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/gpac/gpac/issues/3261"
        },
        {
          "url": "https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4"
        },
        {
          "url": "https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc"
        },
        {
          "url": "https://infosec.exchange/@sigdevel/116769271709415444"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-55640",
    "datePublished": "2026-10-16T00:00:00.000Z",
    "dateReserved": "2025-08-13T00:00:00.000Z",
    "dateUpdated": "2026-10-17T18:07:59.322Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

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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.

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.

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