How severe is CVE-2019-9863?

CVE-2019-9863 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-9863 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9863?

CVE-2019-9863 primarily affects Abus Secvest Wireless Alarm System Fuaa50000 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-9863?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-9863 published?

CVE-2019-9863 was published on 2019-03-27 and last updated on 2026-06-17.

CVE-2019-9863

CVE-2019-9863 is a critical-severity vulnerability in Abus Secvest Wireless Alarm System Fuaa50000 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-330.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: Abus Secvest Wireless Alarm System Fuaa50000 Firmware
Published: 2019-03-27
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2019-9863?: CVE-2019-9863 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-9863 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9863?: CVE-2019-9863 primarily affects Abus Secvest Wireless Alarm System Fuaa50000 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-9863?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-9863 published?: CVE-2019-9863 was published on 2019-03-27 and last updated on 2026-06-17.

References

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-034.txt

Affected products (3)

cpe:2.3:o:abus:secvest_wireless_alarm_system_fuaa50000_firmware:3.01.01:*:*:*:*:*:*:*
cpe:2.3:o:abus:secvest_wireless_remote_control_fube50014_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:abus:secvest_wireless_remote_control_fube50015_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Abus Secvest Wireless Alarm System Fuaa50000 Firmware

CVE-2019-9861 — High (CVSS 8.1): Due to the use of an insecure RFID technology (MIFARE Classic), ABUS proximity chip keys (RFID tokens) of the ABUS…
CVE-2020-28973 — High (CVSS 7.5): The ABUS Secvest wireless alarm system FUAA50000 (v3.01.17) fails to properly authenticate some requests to its…
CVE-2019-14261 — High (CVSS 7.5): An issue was discovered on ABUS Secvest FUAA50000 3.01.01 devices. Due to an insufficient implementation of jamming…
CVE-2019-9860 — High (CVSS 7.5): Due to unencrypted signal communication and predictability of rolling codes, an attacker can "desynchronize" an ABUS…
CVE-2019-9862 — Medium (CVSS 6.5): An issue was discovered on ABUS Secvest wireless alarm system FUAA50000 3.01.01 in conjunction with Secvest remote…

All CVEs affecting Abus Secvest Wireless Alarm System Fuaa50000 Firmware →

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