CVE-2012-3015

Untrusted search path vulnerability in Siemens SIMATIC STEP7 before 5.5 SP1, as used in SIMATIC PCS7 7.1 SP3 and earlier and other products, allows local users to gain privileges via a Trojan horse DLL in a STEP7 project folder.

Published: 2012-07-26 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-3015 is rated Moderate Risk (40.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.46%). Review affected assets and schedule 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-2012-3015

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 0.07% 0.46% +0.38%
2 2025-04-27 0.17% 0.07% -0.10%
3 2025-03-17 — 0.17% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3015

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.9 2.0 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 3.4 10.0 [email protected]

Weakness enumeration for CVE-2012-3015

NVD evaluator notes for CVE-2012-3015

Comment: Per: http://cwe.mitre.org/data/definitions/426.html 'CWE-426: Untrusted Search Path'

Affected software / configurations for CVE-2012-3015

Vendor Product Version Raw CPE
siemens simatic_pcs7 <= 7.1 cpe:2.3:a:siemens:simatic_pcs7:*:sp3:*:*:*:*:*:*
siemens simatic_step_7 <= 5.5 cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*

References for CVE-2012-3015

cvelogic Threat Intelligence