Multiple vulnerabilities were found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to cause denial of service, bypass security restrictions, spoof user interface, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. Use after free vulnerability in WebRTC can be exploited to cause denial of service and bypass security restrictions.
2. Security UI vulnerability can be exploited to spoof user interface.
3. Security vulnerability can be exploited to bypass security restrictions.
4. Security vulnerability in WASM threads can be exploited to potentially cause denial of service.
5. Memory vulnerability can be exploited to execute arbitrary code.

Mozilla Firefox earlier than 82

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MFSA2020-45