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

Below is a complete list of vulnerabilities:

1. Use after free vulnerability in Web Worker can be exploited to potentially cause denial of service.
2. Sandbox escape vulnerability on Windows to cause denial of service.
3. Security bypass vulnerability in ‘Copy as cURL’ component on Windows can be exploited to bypass security restrictions and execute arbitrary code.
4. Security bypass vulnerability in ‘Copy as cURL’ component can be exploited to bypass security restrictions and obtain sensitive information.
5. URL spoofing vulnerability in location bar component can be exploited locally to perform domain spoofing.
6. Security bypass vulnerability in CSP component can be exploited to execute arbitrary code.
7. Stack buffer overflow vulnerability in SCTP component can be exploited to potentially cause denial of service.
8. Memory corruption vulnerability can be exploited to execute arbitrary code.
9. URLs serialization vulnerability can be exploited to bypass security restrictions.

Mozilla Firefox earlier than 76

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MFSA2020-16