{"id":"CVE-2025-71438","title":"An out-of-bounds read in gf_odf_ac4_cfg_dsi_v1 (/odf/descriptors.c) in GPAC Project/MP4Box before v26.07.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AC4 file.","summary":"An out-of-bounds read in gf_odf_ac4_cfg_dsi_v1 (/odf/descriptors.c) in GPAC Project/MP4Box before v26.07.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AC4 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","cvssSource":"adp","ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-26T15:44:57.879640Z"},"exploitAvailable":true,"published":"2026-10-21","updated":"2026-10-26","sourceUpdated":"2026-10-26T15:45:02.651Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71438","references":[{"url":"https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/50/50_gf_odf_ac4_cfg_dsi_v1_odf_descriptors_c_2179"},{"url":"https://github.com/gpac/gpac/issues/3303"},{"url":"https://github.com/gpac/gpac/commit/13eb5b76560aaf7813b865a2ad433258478e2695"}],"tags":["cve.org","exploit-available"],"epss":0.00191,"epssPercentile":0.08646,"ingestedAt":"2026-10-21T15:02:42.109Z","slug":"CVE-2025-71438","body":"## Overview\n\nAn out-of-bounds read in gf_odf_ac4_cfg_dsi_v1 (/odf/descriptors.c) in GPAC Project/MP4Box before v26.07.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AC4 file.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":229652,"id":"CVE-2025-71438","ts":1793032371771,"field":"exploit_available","old":"false","new":"true"},{"seq":229651,"id":"CVE-2025-71438","ts":1793032371771,"field":"cvss","old":null,"new":"5.5"},{"seq":229650,"id":"CVE-2025-71438","ts":1793032371771,"field":"severity","old":"none","new":"medium"}]}