{"cve":"CVE-2025-55640","nvd":{"published":"2026-10-16T19:16:56.243","modified":"2026-10-17T18:16:28.277","status":"Deferred","description":"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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://github.com/gpac/gpac/commit/321624f28d19a413449fd1718d1eb59037f8f7fc","https://github.com/gpac/gpac/issues/3261","https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/25/25_poc.mp4","https://infosec.exchange/@sigdevel/116769271709415444","http://www.openwall.com/lists/oss-security/2026/10/17/2"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2025-55640","score":0.00223,"percentile":0.12784,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}