What’s Vulnerable › Vulnerabilities

CVE-2016-4784

• Severity: medium (CVSS 5.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-05-31 · updated 2026-06-17
• Weakness: CWE-200

Description

A vulnerability has been identified in firmware variant PROFINET IO for EN100 Ethernet module : All versions < V1.04.01; Firmware variant Modbus TCP for EN100 Ethernet module : All versions < V1.11.00; Firmware variant DNP3 TCP for EN100 Ethernet module : All versions < V1.03; Firmware variant IEC 104 for EN100 Ethernet module : All versions < V1.21; EN100 Ethernet module included in SIPROTEC Merging Unit 6MU80 : All versions < 1.02.02; SIPROTEC 7SJ686 : All versions < V 4.83; SIPROTEC 7UT686 : All versions < V 4.01; SIPROTEC 7SD686 : All versions < V 4.03; SIPROTEC 7SJ66 : All versions < V 4.20. The integrated web server (port 80/tcp) of the affected devices could allow remote attackers to obtain sensitive device information if network access was obtained.

Affected products

• Siemens Siprotec Firmware: 4.26

References

• http://www.securityfocus.com/bid/90773
• http://www.securityfocus.com/bid/99471
• http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-547990.pdf
• https://ics-cert.us-cert.gov/advisories/ICSA-16-140-02
• https://ics-cert.us-cert.gov/advisories/ICSA-17-187-03
• https://www.siemens.com/cert/pool/cert/siemens_security_advisory_SSA-323211.pdf
• http://www.securityfocus.com/bid/90773
• http://www.securityfocus.com/bid/99471
• http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-547990.pdf
• https://ics-cert.us-cert.gov/advisories/ICSA-16-140-02
• https://ics-cert.us-cert.gov/advisories/ICSA-17-187-03
• https://www.siemens.com/cert/pool/cert/siemens_security_advisory_SSA-323211.pdf

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