{"id":"CVE-2019-18672","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-18672","generatedAt":"2026-10-27T21:18:52.478Z","title":"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.","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.","published":"2019-12-06T18:15:13.000Z","lastModified":"2026-06-17T02:25:16.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-354"],"affected":["shapeshift/keepkey firmware"],"epss":{"score":0.00783,"percentile":0.55756,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://blog.inhq.net/posts/keepkey-CVE-2019-18672/","source":"cve@mitre.org"},{"url":"https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.inhq.net/posts/keepkey-CVE-2019-18672/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-18672","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}