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 MediaWiki Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2012-4377) WordPress Plugin TDO Mini Forms Arbitrary File Upload (0.13.9) WordPress 4.4.x Multiple Vulnerabilities (4.4 - 4.4.1) MySQL CVE-2021-2471 Vulnerability (CVE-2021-2471) WordPress Plugin Share Buttons by AddThis Cross-Site Scripting (4.0.7) Severity Critical Classification CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Tags Missing Update Known Vulnerabilities CWE-190 CVE-2016-9063