CVE-2017-9987

CVE-2017-9987 describes a heap-based buffer overflow in the hpel_motion function within libav 12.1's mpegvideo_motion.c. This vulnerability allows a remote attacker to trigger a denial of service by providing a specially crafted input. With a CVSS score of 7.5 (HIGH), it presents a significant risk due to its network-based attack vector and low attack complexity, requiring no user interaction or privileges. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it is not currently a high-profile threat.