CVE-2012-3017

Siemens SIMATIC S7-400 PN CPU devices with firmware 5.x allow remote attackers to cause a denial of service (defect-mode transition and service outage) via (1) malformed HTTP traffic or (2) malformed IP packets.

Published: 2012-07-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-3017 is rated Moderate Risk (64.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.46%). EPSS rose +2.56% over the last day, indicating growing attacker interest. 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-2012-3017

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 0.90% 3.46% +2.56%
2 2025-04-27 2.01% 0.90% -1.11%
3 2025-03-30 — 2.01% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3017

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2012-3017

Affected software / configurations for CVE-2012-3017

Vendor Product Version Raw CPE
siemens simatic_s7-400_cpu_firmware 5.0 cpe:2.3:o:siemens:simatic_s7-400_cpu_firmware:5.0:*:*:*:*:*:*:*
siemens simatic_s7-400_cpu_414-3_pn\/dp — cpe:2.3:h:siemens:simatic_s7-400_cpu_414-3_pn\/dp:*:*:*:*:*:*:*:*
siemens simatic_s7-400_cpu_416-3_pn\/dp — cpe:2.3:h:siemens:simatic_s7-400_cpu_416-3_pn\/dp:*:*:*:*:*:*:*:*
siemens simatic_s7-400_cpu_416f-3_pn\/dp — cpe:2.3:h:siemens:simatic_s7-400_cpu_416f-3_pn\/dp:*:*:*:*:*:*:*:*

References for CVE-2012-3017

cvelogic Threat Intelligence