CVSS 3.1
8.8 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVE-2021-31616
High (8.8) in shapeshift keepkey firmware. EPSS 2.5% chance of exploitation in the next 30 days.
Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.1.0 allow a stack buffer overflow via crafted messages. The overflow in ethereum_extractThorchainSwapData() in ethereum.c can circumvent stack protections and lead to code execution. The vulnerable interface is reachable remotely over WebUSB.
Severity
- EPSS
- 2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)
- CWE
- CWE-787
- Published
- Modified
- Record from
- the NVD, synced
Affected
- shapeshift:keepkey_firmware
References
- https://blog.inhq.net/posts/keepkey-CVE-2021-31616/
- https://github.com/keepkey/keepkey-firmware/commit/e49d45594002d4d3fbc1f03488e6dfc0a0a65836
- https://github.com/keepkey/keepkey-firmware/releases/tag/v7.1.0
- https://shapeshift.com/library/keepkey-important-update-issued-april-4-required
- https://blog.inhq.net/posts/keepkey-CVE-2021-31616/