CVE-2019-14354 json
On Ledger Nano S and Nano X devices, a side channel for the row-based OLED display was found.
published 2019-08-10 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-5570
- cvss
- 2.4
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
On Ledger Nano S and Nano X devices, 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.
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 2.4 | CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 1.9 | AV:L/AC:M/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
-
ledger-donjon.github.io
/oled-vuln/
third-party-advisory
Sources
- CVE List CVE-2019-14354
- NVD CVE-2019-14354
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