CVE-2019-12821

Name: CVE-2019-12821
Creator: NVD / NIST
Published: 2019-07-19T18:15:11.883+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.95%

Last modified Jun 17, 2026

CVE-2019-12821 is a vulnerability of currently unknown severity. A vulnerability was found in the app 2.0 of the Shenzhen Jisiwei i3 robot vacuum cleaner, while adding a device to the account using a QR-code. The QR-code follows an easily predictable pattern that depends only on the specific device ID of the robot vacuum cleaner. EPSS estimates a 0.95% chance of exploitation in the next 30 days.

Description

A vulnerability was found in the app 2.0 of the Shenzhen Jisiwei i3 robot vacuum cleaner, while adding a device to the account using a QR-code. The QR-code follows an easily predictable pattern that depends only on the specific device ID of the robot vacuum cleaner. By generating a QR-code containing information about the device ID, it is possible to connect an arbitrary device and gain full access to it. The device ID has an initial "JSW" substring followed by a six digit number that depends on the specific device.

Metrics

EPSS Probability

0.95%

56.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-330

Affected Software

Vendor	Product	Versions
Jisiwei	I3 Firmware	2.0

References

Timeline

Published: Jul 19, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12821?

How severe is CVE-2019-12821?

Severity scoring for CVE-2019-12821 is pending analysis. The EPSS model estimates a 0.95% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12821?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12821?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST