Vulnerability in Siemens Simatic S7-1500 CPU Firmware
CVE-2014-2251
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.
EPSS: 0.027 (84.7th percentile) — read the EPSS interpretation.
Affected products
- Siemens Simatic_s7-1500_cpu_firmware — versions 1.0.1, 1.1.0, 1.1.1
- N/a — versions n/a
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- cve@mitre.org (US Government Resource, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2014-2251?
- CVE-2014-2251 is a vulnerability in Siemens Simatic S7-1500 CPU Firmware. Published 2014-03-16.
- Is CVE-2014-2251 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.