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Status published
Critical
CVE-2014-5414
Beckhoff Embedded PC Images and TwinCAT Components Improper Restriction of Excessive Authentication Attempts
Vulnerability Description
Beckhoff Embedded PC images before 2014-10-22 and Automation Device Specification (ADS) TwinCAT components do not restrict the number of authentication attempts, which makes it easier for remote attackers to obtain access via a brute-force attack.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Gregor Bonney from FH Aachen University of Applied Sciences
References
- http://www.securityfocus.com/bid/93349
- https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2014-001.pdf
- https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2014-002.pdf
- https://download.beckhoff.com/download/document/product-security/Advisories/advisory-2014-003.pdf
- https://www.cisa.gov/news-events/ics-advisories/icsa-16-278-02
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2016/icsa-16-278-02.json
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Beckhoff: Local Denial-of-Service vulnerability in TwinCAT/BSD and the IPC-Diagnostics package
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Affected Vendor
Beckhoff
View all reports →Affected Software
Embedded PC Images, TwinCAT Components featuring Automation Device Specification (ADS) communication
Vulnerable Versions:
0, All
Timeline
Official Publish:
October 5th, 2016
Last Modified:
November 4th, 2025
Added to House:
July 19th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N