Unrated severityNVD Advisory· Published Mar 16, 2014· Updated Jun 17, 2026
CVE-2014-2251
CVE-2014-2251
Description
The 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:*:*:*:*:*:*:*:*range: <=1.1.2
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_firmware:1.1.1:*:*:*:*:*:*:*
- Range: <1.5.0
Patches
Vulnerability mechanics
References
3- www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-456423.pdfnvdPatchVendor Advisory
- ics-cert.us-cert.gov/advisories/ICSA-14-073-01nvdUS Government Resource
- cert-portal.siemens.com/productcert/pdf/ssa-456423.pdfnvd
News mentions
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