Vulnerability Monitor

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CVE-2016-4785

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. The integrated web server (port 80/tcp) of the affected devices could allow remote attackers to obtain a limited amount of device memory content if network access was obtained. This vulnerability only affects EN100 Ethernet module included in SIPROTEC4 and SIPROTEC Compact devices.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, for affected systems. Impacting 9 products from siemens, from siemens, from siemens and 6 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2016-05-31T01:59:14.227

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Hardware	siemens	siprotec_4_en100	-	No
Hardware	siemens	siprotec_compact_model	-	No
Operating System	siemens	siprotec_firmware	4.26	Yes
Hardware	siemens	siprotec_compact_model_7rw80	-	No
Hardware	siemens	siprotec_compact_model_7sd80	-	No
Hardware	siemens	siprotec_compact_model_7sj80	-	No
Hardware	siemens	siprotec_compact_model_7sj81	-	No
Hardware	siemens	siprotec_compact_model_7sk80	-	No
Hardware	siemens	siprotec_compact_model_7sk81	-	No
Operating System	siemens	siprotec_firmware	-	Yes

References

http://www.securityfocus.com/bid/90773 ([email protected])
http://www.securityfocus.com/bid/99471 ([email protected])
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-547990.pdf Vendor Advisory ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-16-140-02 Third Party Advisory, US Government Resource ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-17-187-03 ([email protected])
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_SSA-323211.pdf ([email protected])
http://www.securityfocus.com/bid/90773 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/99471 (af854a3a-2127-422b-91ae-364da2661108)
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-547990.pdf Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-16-140-02 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-17-187-03 (af854a3a-2127-422b-91ae-364da2661108)
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_SSA-323211.pdf (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For siemens's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.