Description An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50. Remediation References CVE-2016-9063 Related Vulnerabilities SharePoint Buffer Over-read Vulnerability (CVE-2025-53736) WordPress Plugin Airtight Security & Features Formerly Redirect Editor And Security Unspecified Vulnerability (1.3) WordPress Plugin Local Market Explorer 'api-key' Parameter Cross-Site Scripting (3.1.1) WordPress Plugin User Registration-Custom Registration Form, Login Form, and User Profile Privilege Escalation (3.2.0.1) MyBB Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2018-7305) Severity Critical Classification CVE-2016-9063 CWE-190 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Tags Missing Update Known Vulnerabilities