The vulnerability of the FileReader::DoReadData() function in browsers like Firefox and Firefox ESR, as well as in the email client Thunderbird, allows a hacker to execute arbitrary code on the target system.

The vulnerability of the FileReader::DoReadData function in browsers like Firefox and Firefox ESR, as well as in the email client Thunderbird, is related to the execution of operations outside of the buffer in memory. Exploiting this vulnerability allows a remote attacker to execute arbitrary cod...