CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
COMPLETE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:N/I:C/A:N
AI Score
Confidence
Low
EPSS
Percentile
44.5%
The EFI component in Apple OS X before 10.11 allows physically proximate attackers to modify firmware during the EFI update process by inserting an Apple Ethernet Thunderbolt adapter with crafted code in an Option ROM, aka a “Thunderstrike” issue. NOTE: this issue exists because of an incomplete fix for CVE-2014-4498.