CVE-2019-18672 json
Insufficient checks in the finite state machine of the ShapeShift KeepKey hardware wallet before firmware 6.2.2 allow a partial reset of cr…
published 2019-12-06 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8388
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-354 Improper Validation of Integrity Check Value
References
-
github.com
/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680
patch, third-party-advisory
-
medium.com
/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065
third-party-advisory
-
medium.com
/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3
third-party-advisory
- blog.inhq.net /posts/keepkey-CVE-2019-18672/
Sources
- CVE List CVE-2019-18672
- NVD CVE-2019-18672
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