CVE-2019-14353
On Trezor One devices before 1.8.2, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the USB cable might be able to leverage this behavior to recover confidential secrets such as the PIN and BIP39 mnemonic. In other words, the side channel is relevant only if the attacker has enough control over the device's USB connection to make power-consumption measurements at a time when secret data is displayed.
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The side channel is not relevant in other circumstances, such as a stolen device that is not currently displaying secret data. NOTE: this CVE applies exclusively to the Trezor One, and does not refer to any issues with OLED displays on other devices.
CVSS
- Versión: 3.0
- Vector: CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Puntuación base: 4.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.37%
- Percentil entre todas las CVEs puntuadas: 29
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-203
Referencias
JSON original (NVD)
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"value": "On Trezor One devices before 1.8.2, a side channel for the row-based OLED display was found. The power consumption of each row-based display cycle depends on the number of illuminated pixels, allowing a partial recovery of display contents. For example, a hardware implant in the USB cable might be able to leverage this behavior to recover confidential secrets such as the PIN and BIP39 mnemonic. In other words, the side channel is relevant only if the attacker has enough control over the device's USB connection to make power-consumption measurements at a time when secret data is displayed. The side channel is not relevant in other circumstances, such as a stolen device that is not currently displaying secret data. NOTE: this CVE applies exclusively to the Trezor One, and does not refer to any issues with OLED displays on other devices."
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"value": "En los dispositivos Trezor One en versiones anteriores a 1.8.2, se encontró un canal lateral para la pantalla OLED basada en filas. El consumo de energía de cada ciclo de visualización basado en filas depende del número de píxeles iluminados, lo que permite una recuperación parcial del contenido de la pantalla. Por ejemplo, un implante de hardware en el cable USB podría aprovechar este comportamiento para recuperar secretos confidenciales como el PIN y el mnemónico BIP39. En otras palabras, el canal lateral es relevante solo si el atacante tiene suficiente control sobre la conexión USB del dispositivo para realizar mediciones de consumo de energía en un momento en que se muestran datos secretos. El canal lateral no es relevante en otras circunstancias, como un dispositivo robado que actualmente no muestra datos secretos. NOTA: este CVE se aplica exclusivamente a Trezor One y no hace referencia a ningún problema con las pantallas OLED en otros dispositivos."
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