CVE-2020-14199
6.5 · MEDIUMOverview
CVE-2020-14199 is a medium-severity vulnerability affecting satoshilabs trezor_model_t_firmware. It was published on June 16, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
BIP-143 in the Bitcoin protocol specification mishandles the signing of a Segwit transaction, which allows attackers to trick a user into making two signatures in certain cases, potentially leading to a huge transaction fee. NOTE: this affects all hardware wallets. It was fixed in 1.9.1 for the Trezor One and 2.3.1 for the Trezor Model T.
Remediation
Check the references section for vendor advisories and patches from satoshilabs. Update trezor_model_t_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| satoshilabs | trezor_model_t_firmware | >= 0, < 2.3.1 | Affected |
| satoshilabs | trezor_one_firmware | >= 0, < 1.9.1 | Affected |
Frequently Asked Questions
What is CVE-2020-14199?
CVE-2020-14199 is a medium-severity vulnerability affecting satoshilabs trezor_model_t_firmware. It was published on June 16, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2020-14199?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-14199?
Check the references section for vendor advisories and patches from satoshilabs. Update trezor_model_t_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-14199?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-14199 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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