CVE-2021-23981
A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9. Date published : 2021-03-31 https://bugzilla.mozilla.org/show_bug.cgi?id=1692832