{"cve":"CVE-2025-55639","nvd":{"published":"2026-06-23T16:16:58.520","modified":"2026-10-12T21:10:00.227","status":"Analyzed","description":"GPAC MP4Box v2.4 was discovered to contain a NULL pointer dereference in the gf_isom_add_track_kind() function at isomedia/isom_write.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-476"],"references":["https://github.com/gpac/gpac/commit/027ce139dda498ee95df36db9f9f6f3cadce8ec9","https://github.com/gpac/gpac/issues/3260","https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/23/23_poc.mp4","https://infosec.exchange/@sigdevel/116769184815236865","http://www.openwall.com/lists/oss-security/2026/06/26/2"],"products":["gpac:gpac"],"source":"nvd","synced_at":"2026-10-19T22:39:28.638635428+00:00"},"epss":{"cve":"CVE-2025-55639","score":0.00511,"percentile":0.43311,"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."]}