CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
16.2%
Security researcher Robert Kugler reported in 2012 that when a specifically named DLL file on a Windows computer is placed in the default downloads directory with the Firefox installer, the Firefox installer will load this DLL file when it is launched. Mozilla developers Brian Bondy and Robert Strong then discovered that the stub installer was vulnerable to this same issue with a number of DLL files and there were additionally vulnerable named DLL files with the full installer. In circumstances where an installer is run by an administrator privileged account, this allows for a downloaded DLL file to be run with those administrator privileges.