CVE-2019-14359: On BC Vault devices, a side channel for the row-based SSD1309 OLED display was found

Routine

LOW 2.4MITIGATE

CVE-2019-14359 is a low-severity flaw (CVSS 2.4) affecting bc vault firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

On BC Vault devices, a side channel for the row-based SSD1309 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 a data value. In other words, the side channel is relevant only if the attacker has enough control over the device's

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	2.4 (Low)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-203
Published	2019-08-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: real-sec

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-08-12 23:15 UTCPublished CVE record published
2026-06-17 02:18 UTCUpdated Record last modified

real-sec bc vault firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2019-14359?

bc vault firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-14359 being exploited?

CVE-2019-14359 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-2019-14359 affect?

CVE-2019-14359 affects bc vault firmware. Severity is low (CVSS 2.4). On BC Vault devices, a side channel for the row-based SSD1309 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 ex

How urgent is CVE-2019-14359?

Priority 23/100. Public exploit reference

Software pages

HashiCorp Vault vulnerabilities

References

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