CVE-2012-6068 | 3S CoDeSys Improper Access Control

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.

Published: 2013-01-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-6068 is rated High Risk (72.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.27%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-6068

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 4.38% 5.27% +0.88%
2 2025-07-03 1.87% 4.38% +2.51%
3 2025-03-30 — 1.87% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-6068

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2012-6068

Affected software / configurations for CVE-2012-6068

Vendor Product Version Raw CPE
3s-software codesys_runtime_system 2.3.9.8 cpe:2.3:a:3s-software:codesys_runtime_system:2.3.9.8:*:*:*:*:*:*:*
3s-software codesys_runtime_system 2.3.9.35 cpe:2.3:a:3s-software:codesys_runtime_system:2.3.9.35:*:*:*:*:*:*:*
3s-software codesys_runtime_system 2.3.9.36 cpe:2.3:a:3s-software:codesys_runtime_system:2.3.9.36:*:*:*:*:*:*:*
3s-software codesys_runtime_system 2.3.9.37 cpe:2.3:a:3s-software:codesys_runtime_system:2.3.9.37:*:*:*:*:*:*:*
3s-software codesys_runtime_system 2.4.0 cpe:2.3:a:3s-software:codesys_runtime_system:2.4.0:*:*:*:*:*:*:*

References for CVE-2012-6068

cvelogic Threat Intelligence