What’s Vulnerable › Vulnerabilities

CVE-2019-18672

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-12-06 · updated 2026-06-17
• Weakness: CWE-354

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.

Affected products

• Shapeshift Keepkey Firmware: before 6.2.2 — fixed in 6.2.2

How to fix

Upgrade to a fixed version: Shapeshift Keepkey Firmware 6.2.2. Check the vendor advisory for mitigations.

References

• https://blog.inhq.net/posts/keepkey-CVE-2019-18672/
• https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680
• https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065
• https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3
• https://blog.inhq.net/posts/keepkey-CVE-2019-18672/
• https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680
• https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065
• https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3

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