What is CVE-2019-9863?

CVE-2019-9863 is a critical-severity vulnerability in Abus Secvest Wireless Alarm System Fuaa50000, classified under Use of Insufficiently Random Values. CVSS score: 9.8/10. Published 2019-03-27.

How severe is CVE-2019-9863?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Abus Secvest Wireless Alarm System Fuaa50000

CVE-2019-9863

Due to the use of an insecure algorithm for rolling codes in the ABUS Secvest wireless alarm system FUAA50000 3.01.01 and its remote controls FUBE50014 and FUBE50015, an attacker is able to predict valid future rolling codes, and can thus remotely control the alarm system in an unauthorized way.

Published 2019-03-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.021 (81.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-034.txt (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-9863?: CVE-2019-9863 is a critical-severity vulnerability in Abus Secvest Wireless Alarm System Fuaa50000, classified under Use of Insufficiently Random Values. CVSS score: 9.8/10. Published 2019-03-27.
How severe is CVE-2019-9863?: Critical severity. CVSS v3 base score is 9.8 out of 10.