CVE-2025-9182

CVE-2025-9182 is a high-severity denial-of-service vulnerability affecting Mozilla Firefox versions prior to 142, Firefox ESR prior to 140.2, and Thunderbird versions prior to 142 and 140.2. The vulnerability stems from an out-of-memory error within the Graphics: WebRender component. With a CVSS score of 7.5, this flaw can be exploited remotely without user interaction, leading to a complete denial of service for affected applications. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.