Description
Insufficient checks in the finite state machine of the ShapeShift KeepKey hardware wallet before firmware 6.2.2 allow a partial reset of cryptographic secrets to known values via crafted messages. Notably, this breaks the security of U2F for new server registrations and invalidates existing registrations. This vulnerability can be exploited by unauthenticated attackers and the interface is reachable via WebUSB.
Scores
CVSS v3
7.5
EPSS
0.0048
EPSS Percentile
65.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-354
Status
published
Products (1)
shapeshift/keepkey_firmware
< 6.2.2
Published
Dec 06, 2019
Tracked Since
Feb 18, 2026