CVE-2014-2250

The random-number generator on Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 does not have sufficient entropy, which makes it easier for remote attackers to defeat cryptographic protection mechanisms and hijack sessions via unspecified vectors, a different vulnerability than CVE-2014-2251.

Published: 2014-03-24 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-2250 is rated Moderate Risk (64.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.13%). 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-2014-2250

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 2.25% 3.13% +0.88%
2 2026-05-09 1.83% 2.25% +0.42%
3 2026-03-08 — 1.83% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-2250

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.3 2.0 HIGH
AV:N/AC:M/Au:N/C:P/I:P/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 8.5 [email protected]

Weakness enumeration for CVE-2014-2250

Affected software / configurations for CVE-2014-2250

Vendor Product Version Raw CPE
siemens simatic_s7_cpu_1200_firmware <= 3.0.2 cpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:*:*:*:*:*:*:*:*
siemens simatic_s7_cpu_1200_firmware 3.0 cpe:2.3:o:siemens:simatic_s7_cpu_1200_firmware:3.0:*:*:*:*:*:*:*
siemens simatic_s7_cpu-1211c — cpe:2.3:h:siemens:simatic_s7_cpu-1211c:-:*:*:*:*:*:*:*
siemens simatic_s7_cpu_1212c — cpe:2.3:h:siemens:simatic_s7_cpu_1212c:-:*:*:*:*:*:*:*
siemens simatic_s7_cpu_1214c — cpe:2.3:h:siemens:simatic_s7_cpu_1214c:-:*:*:*:*:*:*:*
siemens simatic_s7_cpu_1215c — cpe:2.3:h:siemens:simatic_s7_cpu_1215c:-:*:*:*:*:*:*:*
siemens simatic_s7_cpu_1217c — cpe:2.3:h:siemens:simatic_s7_cpu_1217c:-:*:*:*:*:*:*:*

References for CVE-2014-2250

cvelogic Threat Intelligence