What is the CVSS score of CVE-2019-9863?

CVE-2019-9863 has a CVSS 3.0 base score of 9.8 (Critical). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 2.1%.

Is there a public PoC exploit available for CVE-2019-9863?

Yes, a public proof-of-concept exploit is available for CVE-2019-9863. Prioritise patching immediately. EPSS: 2.1%.

Secvest Wireless Alarm System Fuaa50000 Firmware CVE-2019-9863

CRITICAL

Use of Insufficiently Random Values (CWE-330)

2019-03-27 cve@mitre.org

Authentication Bypass Secvest Wireless Alarm System Fuaa50000 Firmware Secvest Wireless Remote Control Fube50014 Firmware Secvest Wireless Remote Control Fube50015 Firmware

9.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 27, 2019 - 14:29 nvd

CRITICAL 9.8

DescriptionNVD

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.

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-330. 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. Affected products include: Abus Secvest Wireless Alarm System Fuaa50000 Firmware, Abus Secvest Wireless Remote Control Fube50014 Firmware, Abus Secvest Wireless Remote Control Fube50015 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.