How severe is CVE-2023-27892?

CVE-2023-27892 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over physical access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-27892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27892?

CVE-2023-27892 affects Shapeshift Keepkey Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27892?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-27892 published?

CVE-2023-27892 was published on 2023-05-02 and last updated on 2026-06-17.

CVE-2023-27892

CVE-2023-27892 is a low-severity vulnerability in Shapeshift Keepkey Firmware with a CVSS 3.x base score of 3.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Low (CVSS 3.x base score 3.8)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Shapeshift Keepkey Firmware
Published: 2023-05-02
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-27892?: 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.
How severe is CVE-2023-27892?: CVE-2023-27892 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over physical access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-27892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27892?: CVE-2023-27892 affects Shapeshift Keepkey Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27892?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-27892 published?: CVE-2023-27892 was published on 2023-05-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:shapeshift:keepkey_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Shapeshift Keepkey Firmware

CVE-2021-31616 — High (CVSS 8.8): Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.1.0 allow a stack buffer…
CVE-2019-18672 — High (CVSS 7.5): Insufficient checks in the finite state machine of the ShapeShift KeepKey hardware wallet before firmware 6.2.2 allow a…
CVE-2018-6875 — High (CVSS 7.5): Format String vulnerability in KeepKey version 4.0.0 allows attackers to trigger information display (of information…
CVE-2019-14355 — Low (CVSS 2.4): On ShapeShift KeepKey devices, a side channel for the row-based OLED display was found. The power consumption of each…

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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