CVE-2024-0743

CVE-2024-0743 is a high-severity vulnerability affecting Firefox before version 122, Firefox ESR before 115.9, and Thunderbird before 115.9. It stems from an unchecked return value in TLS handshake code, which could lead to a denial-of-service crash. The vulnerability has a CVSS score of 7.5, indicating a high impact on availability, with low attack complexity and no user interaction required. While there is no evidence of active exploitation, nor publicly available exploit code in Metasploit, Nuclei, or ExploitDB, it has garnered some community discussion and media coverage.