CVE-2016-4784

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.

• CWE-200

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

Published

May 31, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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