Vulnerabilities > CVE-2020-26950 - Use After Free vulnerability in Mozilla Firefox

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
mozilla
CWE-416
critical

Summary

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.

Vulnerable Configurations

Part Description Count
Application
Mozilla
1083

Common Weakness Enumeration (CWE)