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{"acknowledgement": "Upstream acknowledges Seonwook Kim as the original reporter.", "bugzilla": {"description": "gstreamer1-plugins-good: gstreamer: integer overflow and out-of-bounds read in qtdemux CEA-608 closed-caption parser", "id": "2531416", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531416"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L", "status": "draft"}, "cwe": "CWE-190", "details": ["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 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."], "mitigation": {"lang": "en:us", "value": "No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability."}, "name": "CVE-2026-88914", "public_date": "2026-09-10T14:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-88914\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-88914\nhttps://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12433\nhttps://gstreamer.freedesktop.org/security/sa-2026-0079.html"], "statement": "This vulnerability is rated as Moderate because exploitation requires a user to open a crafted MP4 or MOV file and the issue is limited to an out-of-bounds read of up to approximately 244 bytes of adjacent heap memory. Code execution is not possible from this read-only flaw. Red Hat product impact analysis is pending component mapping to determine which products ship the affected gst-plugins-good qtdemux CEA-608 caption parsing code path.", "threat_severity": "Moderate"}

{"created": "2026-09-11T02:15:10.954182+00:00", "updated": "2026-09-11T04:45:18.704829+00:00", "vendors": []}