CVE-2014-2251

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Summary

CVECVE-2014-2251
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-03-16 14:06:45 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe random-number generator on Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 does not have sufficient entropy, which makes it easier for remote attackers to defeat cryptographic protection mechanisms and hijack sessions via unspecified vectors.

Risk And Classification

Primary CVSS: v2.0 8.3 from [email protected]

AV:N/AC:M/Au:N/C:P/I:P/A:C

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Complete

AV:N/AC:M/Au:N/C:P/I:P/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Siemens Simatic S7-1500 Cpu Firmware 1.0.1 All All All
Operating System Siemens Simatic S7-1500 Cpu Firmware 1.1.0 All All All
Operating System Siemens Simatic S7-1500 Cpu Firmware 1.1.1 All All All
Operating System Siemens Simatic S7-1500 Cpu Firmware All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Siemens af854a3a-2127-422b-91ae-364da2661108 www.siemens.com Patch, Vendor Advisory
Siemens SIMATIC S7-1500 CPU Firmware Vulnerabilities | ICS-CERT af854a3a-2127-422b-91ae-364da2661108 ics-cert.us-cert.gov US Government Resource
cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 591118 Siemens SIMATIC S7-1500 CPU family Multiple Vulnerabilities (ICSA-14-073-01,SSA-456423)
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