CVE-2019-15551

CVE-2019-15551 is a critical double-free vulnerability affecting the smallvec crate in Rust, specifically versions prior to 0.6.10, and impacts products like Servo. With a CVSS score of 9.8, it presents a severe risk, allowing unauthenticated attackers to achieve high confidentiality, integrity, and availability impacts over a network with low attack complexity. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.