Vulnerability Details : CVE-2019-16871
Beckhoff Embedded Windows PLCs through 3.1.4024.0, and Beckhoff Twincat on Windows Engineering stations, allow an attacker to achieve Remote Code Execution (as SYSTEM) via the Beckhoff ADS protocol.
Vulnerability category: Execute code
Exploit prediction scoring system (EPSS) score for CVE-2019-16871
Probability of exploitation activity in the next 30 days: 2.72%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 89 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-16871
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-16871
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This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-16871
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https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2017-001.pdf
Vendor Advisory
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https://www.ic4.be/2019/12/18/beckhoff-cve-2019-16871/#more-648
Beckhoff CVE-2019-16871 – Industrial Control & Communication Competence Center – IC4Exploit;Third Party Advisory
Products affected by CVE-2019-16871
- cpe:2.3:a:beckhoff:twincat:*:*:*:*:*:*:*:*
- cpe:2.3:a:beckhoff:twincat:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:beckhoff:twincat:3.1:build_4022:*:*:*:*:*:*
- cpe:2.3:a:beckhoff:twincat:3.1:build_4024.0:*:*:*:*:*:*