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.

CVSS 7.8 · High

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2012-3017.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:h:siemens:simatic_s7-400_cpu_414-3_pn\/dpSearch this product on Shodan
cpe:2.3:h:siemens:simatic_s7-400_cpu_416-3_pn\/dpSearch this product on Shodan
cpe:2.3:h:siemens:simatic_s7-400_cpu_416f-3_pn\/dpSearch this product on Shodan
cpe:2.3:o:siemens:simatic_s7-400_cpu_firmwareSearch this product on Shodan

Exact CVE query

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Metadata

Canonical fields

NVD status

Unavailable

Published

Jul 31, 2012

Modified

Jun 16, 2026

Official record

Authoritative NVD record

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

CWE IDs

Vendor classifications

How this vector reads

CVSS 2.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Access Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Access Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Authentication (Au): None. The attacker does not need to authenticate.
Confidentiality Impact (C): None. There is no impact to this security property.
Integrity Impact (I): None. There is no impact to this security property.
Availability Impact (A): Complete. There is a total impact to this security property.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses