Vulnerabilities > CVE-2021-4128 - Use After Free vulnerability in Mozilla Firefox

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
network
low complexity
mozilla
CWE-416

Summary

When transitioning in and out of fullscreen mode, a graphics object was not correctly protected; resulting in memory corruption and a potentially exploitable crash.<br>*This bug only affects Firefox on MacOS. Other operating systems are unaffected.*. This vulnerability affects Firefox < 95.

Vulnerable Configurations

Part Description Count
Application
Mozilla
532
OS
Apple
1

Common Weakness Enumeration (CWE)