CVE-2026-125262

A flaw was found in FFmpeg. A heap buffer overflow can occur in the LCEVC decoder when decoding a specially crafted H.264 or HEVC video file due to a missing validation of output picture dimensions against the allocated frame. This vulnerability can lead to memory corruption, potentially resultin...

UBUNTU-CVE-2026-125262

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

CVE-2026-125262

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

CVE-2026-125262

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

CVE-2026-125262 FFmpeg through 9.0.2 Heap Buffer Overflow via LCEVC Enhancement Decoding

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

CVE-2026-125262 FFmpeg through 9.0.2 Heap Buffer Overflow via LCEVC Enhancement Decoding

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

CVE-2026-125262

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

EUVD-2026-120212

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

CVE-2026-125262

FFmpeg versions through 9.0.2 are vulnerable to a heap buffer overflow in libavcodec/lcevcdec.c. The root cause is a failure to validate LCEVC output picture dimensions against the allocated frame. An attacker can exploit this by embedding crafted LCEVC enhancement data with differing global conf...

PT-2026-141090

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in libavcodec/lcevcdec.c because LCEVC output picture dimensions are not validated against the allocated frame. Attackers can embed crafted LCEVC enhancement data with differing global configurations in H.264 or HEVC streams to...

PT-2026-141017

FFmpeg 8.1 through 9.0.2 contains a denial of service vulnerability in the lcevc metadata bitstream filter caused by a process block position mismatch in lcevc metadata handle vui. Attackers can supply crafted LCEVC access units with two IDR or non-IDR NAL units to trigger an av assert0 failure i...

ffmpeg:ffmpeg_BSF_EXTRACT_EXTRADATA_fuzzer: Heap-buffer-overflow in write_lcevc_nalu

Project: https://git.ffmpeg.org/ffmpeg.git https://github.com/FFmpeg/FFmpeg.git Detailed Report: https://oss-fuzz.com/testcase?key=4605696279904256 Project: ffmpeg Fuzzing Engine: libFuzzer Fuzz Target: ffmpegBSFEXTRACTEXTRADATAfuzzer Job Type: libfuzzerasanffmpeg Platform Id: linux Crash Type:...