CVE-2014-5414

Beckhoff Embedded PC Images and TwinCAT Components Improper Restriction of Excessive Authentication Attempts

9.1 Critical

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

4.80%Up 3.7 points since Feb 4, 2022

What each source reports

CVE List Score used 9.1

Beckhoff Embedded PC Images and TwinCAT Components Improper Restriction of Excessive Authentication Attempts

Record: CVE-2014-5414
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-307
Updated: 2026-11-02

EUVDEUVD-2014-5302 9.1

Record: EUVD-2014-5302
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-jj96-ggr5-64rp 9.1

Beckhoff Embedded PC images before 2014-10-22 and Automation Device Specification (ADS) TwinCAT...

Record: GHSA-jj96-ggr5-64rp
CVSS 3.0: 9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-307
Updated: 2026-11-02

NVD 9.1

Record: CVE-2014-5414
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.0: 9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 2.0: 9.4 HighAV:N/AC:L/Au:N/C:C/I:C/A:N
Weakness: CWE-307, CWE-254
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-5414 is a critical vulnerability (CVSS 9.1) in Beckhoff Embedded Pc Images, published October 5, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.80%, the 91st percentile. No source names a fixed version.