{"id":"CVE-2023-27892","details":"Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages. Flaws in cf_confirmExecTx() in ethereum_contracts.c can be used to reveal arbitrary microcontroller memory on the device screen or crash the device. With physical access to a PIN-unlocked device, attackers can extract the BIP39 mnemonic secret from the hardware wallet.","modified":"2026-08-12T03:51:11.513439516Z","published":"2023-05-02T00:00:00Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27892.json","cna_assigner":"mitre"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27892.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27892"},{"type":"FIX","url":"https://github.com/keepkey/keepkey-firmware/pull/337"},{"type":"ARTICLE","url":"https://blog.inhq.net/posts/keepkey-CVE-2023-27892/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/keepkey/keepkey-firmware","events":[{"introduced":"0"},{"fixed":"28a866966506f0c486ff96028cd23bb337d3ed75"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"7.7.0"}],"source":"DESCRIPTION"}}],"versions":["v7.6.0","v7.5.2","v7.5.1","v7.5.0","v7.4.0","v7.3.2","bl_v2.1.4","v7.2.1","v7.1.7","v7.1.8","v7.1.5","v7.1.4","v7.1.2","v7.1.1","v7.1.0","v7.0.3","v6.7.0","v6.6.0","v6.5.1","v6.4.0","docker-v13","v6.3.0","v6.2.2","v6.2.0-hotfix.0","v6.2.0","v6.1.1","v6.1.0","bl_v2.0.0","v5.11.0","v5.10.1","wl_k114wlda_v2","wl_k114wlbp_v2","v5.9.1","v5.9.0","v5.5.0","v5.4.1","v5.3.0","v5.1.2","v5.1.1","v5.1.0","docker-v3","v5.0.1","v4.0.0","v3.1.0","v3.0.18","v2.2.0","v2.1.0","v2.0.12","v2.0.11","v2.0.9","v1.2.0-rc.1","v1.2.0-rc","v1.2.0","v1.1.0","v1.0.5","v1.0.3","v1.0.1","v1.0.0","v1.0.0rc1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-27892.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AC:H/AV:P/A:N/C:H/I:N/PR:H/S:U/UI:N"}]}