CVE-2023-27892

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    CVE-2023-27892

    Published: 2 May 2023Last Modified: 12 Aug 2026

    Summary:

    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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27892.json, https://nvd.nist.gov/vuln/detail/CVE-2023-27892, https://github.com/keepkey/keepkey-firmware/pull/337, https://blog.inhq.net/posts/keepkey-CVE-2023-27892/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -28a866966506f0c486ff96028cd23bb337d3ed75

    Affected versions

    v7.6.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-27892 | CVE-DB