Vulnerability record · CVE-2014-5414 · published 5 October 2016

CVE-2014-5414: Beckhoff embedded pc images improper restriction of authentication attempts vulnerability

Beckhoff · Embedded Pc Images

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.

9.1 CVSS 3.1 Critical EPSS 4.8% · top 8.4% CWE-307 · Improper restriction of authentication attemptsCWE-254 · CWE-254

9.1CVSS 3.1 base score, v2 9.4

4.8%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

8References

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Embedded Pc Images Beckhoff

Twincat Beckhoff

References

Link	Tags
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://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2016/icsa-16-278-02.json
https://www.cisa.gov/news-events/ics-advisories/icsa-16-278-02
http://www.securityfocus.com/bid/93349
https://ics-cert.us-cert.gov/advisories/ICSA-16-278-02	Third Party AdvisoryUS Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-16871Beckhoff twincat authentication bypass by spoofing vulnerabilityBeckhoff Embedded Windows PLCs through 3.1.4024.0, and Beckhoff Twincat on Windows Engineering stations, allow an attacker to achieve Remote Code Exe…EPSS 5.3%19 Dec 2019 9.1CVE-2017-16726Beckhoff twincat improper authorization vulnerabilityBeckhoff TwinCAT supports communication over ADS. ADS is a protocol for industrial automation in protected environments. ADS has not been designed to…EPSS 0.51%27 Jun 2018 9.1CVE-2014-5415Beckhoff embedded pc images permissions and access controls vulnerabilityBeckhoff Embedded PC images before 2014-10-22 and Automation Device Specification (ADS) TwinCAT components might allow remote attackers to obtain acc…EPSS 4.3%5 Oct 2016 7.8CVE-2018-7502Beckhoff twincat improper input validation vulnerabilityKernel drivers in Beckhoff TwinCAT 3.1 Build 4022.4, TwinCAT 2.11 R3 2259, and TwinCAT 3.1 lack proper validation of user-supplied pointer values. An…EPSS 0.56%23 Mar 2018 7.5CVE-2019-5636Beckhoff twincat improper resource shutdown vulnerabilityWhen a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still perfor…EPSS 1.4%21 Nov 2019 7.5CVE-2019-5637Beckhoff twincat divide by zero vulnerabilityWhen Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP pac…EPSS 1.4%21 Nov 2019 5.9CVE-2017-16718Beckhoff twincat insufficiently protected credentials vulnerabilityBeckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation in protected environments. This protocol uses user co…EPSS 0.42%27 Jun 2018 5.3CVE-2020-12494Beckhoff twincat driver vulnerabilityBeckhoff's TwinCAT RT network driver for Intel 8254x and 8255x is providing EtherCAT functionality. The driver implements real-time features. Except …EPSS 1.0%16 Jun 2020

Source: NIST National Vulnerability Database (record CVE-2014-5414), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.