PatchTheCVECVE-2019-18673: On SHIFT BitBox02 devices, a side channel for the row-based OLED display was found
CVE-2019-18673 is a medium-severity flaw (CVSS 4.6) affecting bitbox02. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
On SHIFT BitBox02 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. Note: BIP39 secrets are not displayed by default on this devi
Why this priority
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 4.6 (Medium) |
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 67%) |
| CISA exploited list | No |
| Weakness | CWE-203 |
| Published | 2019-11-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-18673?
bitbox02: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2019-18673 being exploited?
CVE-2019-18673 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-18673 affect?
CVE-2019-18673 affects bitbox02. Severity is medium (CVSS 4.6). On SHIFT BitBox02 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 exam
How urgent is CVE-2019-18673?
Priority 29/100. Public exploit reference