CVE CVE-2020-6820 Mappings

Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.


Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name
CVE-2020-6820 Thunderbird uncategorized T1055 Process Injection
CVE-2020-6820 Thunderbird uncategorized T1189 Drive-by Compromise