CVE-2018-8403

CVE-2018-8403 is a remote code execution vulnerability, dubbed "Microsoft Browser Memory Corruption Vulnerability," affecting Microsoft Edge and Internet Explorer 10 and 11 across various Windows operating systems. This high-severity flaw (CVSS 7.5) can be exploited remotely with high attack complexity, requiring user interaction, and could lead to complete compromise of confidentiality, integrity, and availability. While the vulnerability has a high FAUCET Risk Score of 86/100, there is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage are minimal, with only one article mentioning its fix in the August 2018 Patch Tuesday.