Vulnerabilities > CVE-2021-4138 - Unspecified vulnerability in Mozilla Geckodriver

047910
CVSS 5.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
LOW
Availability impact
NONE
network
low complexity
mozilla

Summary

Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified hostname.