CVE-2019-14360: On Hyundai Pay Kasse HK-1000 devices, a side channel for the row-based OLED display was found

Routine

MEDIUM 4.6MITIGATE

CVE-2019-14360 is a medium-severity flaw (CVSS 4.6) affecting kasse hk-1000 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

On Hyundai Pay Kasse HK-1000 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

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

Publisher (CNA): MITRE · Vendor: hyundai-pay

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

Am I affected?

Timeline

2019-11-02 17:15 UTCPublished CVE record published
2026-06-17 02:18 UTCUpdated Record last modified

hyundai-pay kasse hk-1000 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-2019-14360?

kasse hk-1000 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-14360 being exploited?

CVE-2019-14360 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-2019-14360 affect?

CVE-2019-14360 affects kasse hk-1000 firmware. Severity is medium (CVSS 4.6). On Hyundai Pay Kasse HK-1000 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 content

How urgent is CVE-2019-14360?

Priority 29/100. Public exploit reference

References

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