The vulnerabilities of Firefox and Firefox ESR browsers, as well as the Thunderbird email client, stem from the improper operation of the ms-cxh and ms-cxh-ful handlers. This allows attackers to trigger an unexpected termination of the application.

The vulnerability of Firefox and Firefox ESR browsers, as well as the Thunderbird email client, exists due to the improper functioning of the ms-cxh and ms-cxh-ful handlers. Exploiting this vulnerability allows a malicious actor to cause an unexpected termination of the application through a...