CVE-2015-8661

CVE-2015-8661 describes an out-of-bounds array access vulnerability in the h264_slice_header_init function of FFmpeg versions prior to 2.8.3. This flaw, stemming from inadequate validation of thread-to-slice relationships in H.264 data, allows remote attackers to trigger a denial of service or potentially other unspecified impacts. With a CVSS score of 8.3 (High), it presents a low-complexity network attack vector with low impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting a low current threat level.