CVE-2020-6819

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. Vendor/Product: Mozilla Firefox and Thunderbird. Added to CISA KEV 2021-11-03; required action: Apply updates per vendor instructions.

Category: Vulnerability, Known Exploited

Reference: NVD CVE-2020-6819