CVE-2019-16871
CRITICAL
9.8
CVSS Score
Published: December 19, 2019 at 08:42 PM UTC
Updated: June 17, 2026 at 02:22 AM UTC
1 product affected across 1 vendorTwincat
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Severity
CRITICAL9.8
Exploit prediction
EPSS 5%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 3.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2017-001.pdfx_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://www.ic4.be/2019/12/18/beckhoff-cve-2019-16871/#more-648CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-290
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