What’s Vulnerable › Vulnerabilities

CVE-2014-2255

• Severity: high (CVSS 7.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2014-03-16 · updated 2026-06-17

Description

Siemens SIMATIC S7-1500 CPU PLC devices with firmware before 1.5.0 allow remote attackers to cause a denial of service (defect-mode transition) via crafted HTTP packets.

Affected products

• Siemens Simatic S7-1500 Cpu Firmware: through 1.1.2; 1.0.1, 1.1.0, 1.1.1

References

• http://ics-cert.us-cert.gov/advisories/ICSA-14-073-01
• http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-456423.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf
• http://ics-cert.us-cert.gov/advisories/ICSA-14-073-01
• http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-456423.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-456423.pdf

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