Vulnerability in Jisiwei I3
CVE-2019-12821
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.
EPSS: 0.009 (57.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Jisiwei I3
- Jisiwei I3_firmware — versions 2.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-12821?
- CVE-2019-12821 is a medium-severity vulnerability in Jisiwei I3, classified under Use of Insufficiently Random Values. CVSS score: 4.8/10. Published 2019-07-19.
- How severe is CVE-2019-12821?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2019-12821 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.