{"cve":"CVE-2019-11338","nvd":{"published":"2019-04-19T00:29:00.230","modified":"2026-06-17T02:12:44.133","status":"Modified","description":"libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-476"],"references":["http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00012.html","http://www.securityfocus.com/bid/108034","https://github.com/FFmpeg/FFmpeg/commit/54655623a82632e7624714d7b2a3e039dc5faa7e","https://github.com/FFmpeg/FFmpeg/commit/9ccc633068c6fe76989f487c8932bd11886ad65b","https://lists.debian.org/debian-lts-announce/2019/05/msg00043.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","ffmpeg:ffmpeg","novell:suse_package_hub_for_suse_linux_enterprise"],"source":"nvd","synced_at":"2026-10-19T20:56:19.218283075+00:00"},"epss":{"cve":"CVE-2019-11338","score":0.02354,"percentile":0.83739,"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."]}