Loading
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.
Use CWE-476, Ffmpeg vendor hub and Ffmpeg product page to widen CVE-2019-11338 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2026-30999, CVE-2026-30998 and CVE-2026-30997 for nearby disclosures in the same product family.