{"id":"CVE-2025-55661","title":"A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.","summary":"A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-122"],"vendor":"gpac","product":"gpac","affected":["gpac < 26.02.0"],"patched":["gpac 26.02.0"],"published":"2026-06-15","updated":"2026-10-12","sourceUpdated":"2026-10-12T22:10:00.247","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-55661","references":[{"url":"https://infosec.exchange/@sigdevel/116733907390103029","label":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/13/13","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00255,"epssPercentile":0.15772,"ingestedAt":"2026-10-12T23:07:25.615Z","slug":"CVE-2025-55661","body":"## Overview\n\nA heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.\n\n## Affected\n\n- `gpac < 26.02.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `gpac 26.02.0`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}