CVE-2016-9933

CVE-2016-9933 is a stack consumption vulnerability in the GD Graphics Library (libgd) before version 2.2.2, also affecting PHP versions before 5.6.28 and 7.x before 7.0.13. A remote attacker can exploit this by crafting an imagefilltoborder call with a negative color value, leading to a denial of service (segmentation violation). This vulnerability has a high severity CVSS score of 7.5, indicating it can be exploited remotely with low attack complexity and no user interaction, resulting in high impact to availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.