This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Edge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of the filter attribute in CSS. By manipulating a document's elements an attacker can trigger a read past the end of an allocated data structure. An attacker could leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.