CVE-2020-6819: Mozilla Firefox And Thunderbird Use-After-Free
Mozilla Firefox And Thunderbird Use-After-Free Vulnerability. Mozilla Firefox and Thunderbird contain a race condition vulnerability when running the nsDocShell destructor under certain conditions. The race condition creates a use-after-free vulnerability, causing unspecified impacts.
- CISA KEV-listed (remediation due 2022-05-03)
- EPSS 0.4% (58.8% percentile)