{"id":"CVE-2026-88914","title":"A flaw was found in GStreamer's gst-plugins-good isomp4 plugin","summary":"A flaw was found in GStreamer's gst-plugins-good isomp4 plugin. When processing a specially crafted MP4 or MOV file containing CEA-608 closed-caption data, an integer overflow in 32-bit unsigned arithmetic can bypass a bounds check in th…","severity":"medium","cvss":4.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","cwe":["CWE-190"],"vendor":"Red Hat","product":"gstreamer1-plugins-good","affected":["gstreamer1-plugins-good (all versions)","gstreamer-plugins-good (all versions)","gstreamer1-plugins-good (all versions)","gstreamer-plugins-good (all versions)","gstreamer1-plugins-good (all versions)","gstreamer1-plugins-good (all versions)"],"published":"2026-09-11","updated":"2026-09-16","sourceUpdated":"2026-09-16T19:42:43.623","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88914","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-88914","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531416","label":"secalert@redhat.com"},{"url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12433","label":"secalert@redhat.com"},{"url":"https://gstreamer.freedesktop.org/security/sa-2026-0079.html","label":"secalert@redhat.com"}],"tags":["nvd","cve.org"],"epss":0.00123,"epssPercentile":0.02404,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-11T14:15:37.604687Z"},"ingestedAt":"2026-09-12T16:23:26.578Z","slug":"CVE-2026-88914","body":"## Overview\n\nA flaw was found in GStreamer's gst-plugins-good isomp4 plugin. When processing a specially crafted MP4 or MOV file containing CEA-608 closed-caption data, an integer overflow in 32-bit unsigned arithmetic can bypass a bounds check in the caption parser. This leads to an out-of-bounds heap read of up to 244 bytes, which is then included in the downstream caption output. An attacker could exploit this by tricking a user into opening a malicious media file, potentially resulting in disclosure of adjacent heap memory or application crash.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":24.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}