HOMEVULNERABILITIESCVE-2019-18672
HIGH

CVE-2019-18672

CWE-354Published: December 6, 2019· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-18672 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

shapeshift1 product(s)
keepkey firmware
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680
PATCHhttps://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680
ADVISORYhttps://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065
ADVISORYhttps://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3
ADVISORYhttps://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065
ADVISORYhttps://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3

All References (8)

→
https://blog.inhq.net/posts/keepkey-CVE-2019-18672/
→
https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680Patch · Third Party Advisory
→
https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065Third Party Advisory
→
https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3Third Party Advisory
→
https://blog.inhq.net/posts/keepkey-CVE-2019-18672/
→
https://github.com/keepkey/keepkey-firmware/commit/769714fcb569e7a4faff9530a2d9ac1f9d6e5680Patch · Third Party Advisory
→
https://medium.com/shapeshift-stories/keepkey-release-notes-v-6f7d2ec78065Third Party Advisory
→
https://medium.com/shapeshift-stories/shapeshift-security-update-8ec89bb1b4e3Third Party Advisory

Quick Facts

CVE IDCVE-2019-18672
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-354
CISA KEVNo
Affected1 vendor(s)
PublishedDec 6, 2019

Related CVEs (CWE-354)

CVE-2017-15994
9.8
CVE-2025-11543
9.8
CVE-2023-28386
9.8
CVE-2023-33668
9.8
CVE-2026-49230
9.1
CVE-2025-54887
9.1

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-18672 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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