{"cve":"CVE-2026-18393","nvd":{"published":"2026-08-28T12:16:25.943","modified":"2026-08-28T20:17:22.993","status":"Awaiting Analysis","description":"A flaw was found in FFmpeg. The tdsc_load_cursor() function writes beyond\nthe bounds of a heap-allocated buffer when processing crafted TDSC cursor\ndata. A remote attacker could exploit this by supplying a specially crafted\nvideo file, potentially leading to a denial of service or arbitrary code\nexecution.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H","score":5.4},"cwes":["CWE-787"],"references":["https://access.redhat.com/security/cve/CVE-2026-18393","https://bugzilla.redhat.com/show_bug.cgi?id=2520309","https://github.com/FFmpeg/FFmpeg/commit/242ff799c75f20bade946314c8d741d0887ee11c","https://patchwork.ffmpeg.org/project/ffmpeg/patch/177767065817.63.1948165304485903849@29965ddac10e/"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-18393","score":0.00361,"percentile":0.29883,"date":"2026-10-31"},"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."]}