CVE-2012-6068

3S CoDeSys Improper Access Control

9.8 Critical

The Runtime Toolkit in CODESYS Runtime System 2.3.x and 2.4.x does not require authentication, which allows remote attackers to execute commands via the command-line interface in the TCP listener service or transfer files via requests to the TCP listener service.

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: High

Exploit likelihood

5.27%Up 4.1 points since Feb 4, 2022

What each source reports

CVE List Score used 9.8

3S CoDeSys Improper Access Control

Record: CVE-2012-6068
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-284
Updated: 2026-11-02

EUVDEUVD-2012-5942 9.8

Record: EUVD-2012-5942
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-hh9j-6v4h-23q7 9.8

The Runtime Toolkit in CODESYS Runtime System 2.3.x and 2.4.x does not require authentication,...

The Runtime Toolkit in CODESYS Runtime System 2.3.x and 2.4.x does not require authentication, which allows remote attackers to (1) execute commands via the command-line interface in the TCP listener service or (2) transfer files via requests to the TCP listener service.

Record: GHSA-hh9j-6v4h-23q7
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-284
Updated: 2026-11-02

NVD 9.8

Record: CVE-2012-6068
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-284, CWE-264
Updated: 2026-11-02

Affected products

History

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

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

In short

CVE-2012-6068 is a critical vulnerability (CVSS 9.8) in 3s-smart Software Solutions Codesys, published January 21, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.27%, the 92nd percentile. No source names a fixed version.