CVE-2017-5464: Mozilla: Memory corruption with accessibility and DOM manipulation (MFSA 2017-11, MFSA 2017-12)

Severity: Critical

CVSS Score: 9.8

During DOM manipulations of the accessibility tree through script, the DOM tree can become out of sync with the accessibility tree, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.