What is CVE-2019-18199?

CVE-2019-18199 is a medium-severity vulnerability in Fujitsu Lx390, classified under Cleartext Transmission of Sensitive Information. CVSS score: 6.6/10. Published 2019-10-24.

How severe is CVE-2019-18199?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Vulnerability in Fujitsu Lx390

CVE-2019-18199

An issue was discovered on Fujitsu Wireless Keyboard Set LX390 GK381 devices. Because of the lack of proper encryption of 2.4 GHz communication, and because of password-based authentication, they are vulnerable to replay attacks.

Published 2019-10-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (26.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Fujitsu Lx390 — versions gk381
Fujitsu Lx390 Firmware

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2019-009.txt (Exploit, Third Party Advisory)
packetstormsecurity.com/files/154954/Fujitsu-Wireless-Keyboard-Set-LX390-Replay… (Exploit, VDB Entry, Third Party Advisory)
www.syss.de/pentest-blog/2019/syss-2019-009-syss-2019-010-und-syss-2019-011-sch… (Third Party Advisory)

Frequently asked questions

What is CVE-2019-18199?: CVE-2019-18199 is a medium-severity vulnerability in Fujitsu Lx390, classified under Cleartext Transmission of Sensitive Information. CVSS score: 6.6/10. Published 2019-10-24.
How severe is CVE-2019-18199?: Medium severity. CVSS v3 base score is 6.6 out of 10.