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
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:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-16871
2.72%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 89 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16871
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
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
-
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
-
https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2017-001.pdf
Vendor Advisory
-
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
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