← Vulnerability feed

Vulnerability record · CVE-2016-4784 · published 31 May 2016

CVE-2016-4784: Siemens siprotec firmware information exposure vulnerability

Siemens · Siprotec Firmware

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.

5.3 CVSS 3.0 Medium EPSS 2.7% · top 14.8% CWE-200 · Information exposure
5.3CVSS 3.0 base score, v2 5.0
2.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 Vendor Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-16-140-02 Third Party AdvisoryUS 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.pdf Vendor Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-16-140-02 Third Party AdvisoryUS 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

Track CVE-2016-4784 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2015-5374Siemens EN100 Ethernet Module UDP Packet Denial of ServiceSpecially crafted UDP packets sent to port 50000 can cause a denial-of-service condition on Siemens EN100 Ethernet modules across multiple firmware v…EPSS 74%analysed5.3CVE-2016-4785Siemens siprotec firmware information exposure vulnerabilityA vulnerability has been identified in Firmware variant PROFINET IO for EN100 Ethernet module : All versions < V1.04.01; Firmware variant Modbus TCP …EPSS 2.7%5.9CVE-2025-68686FortiOS symbolic link patch bypass exposes sensitive informationFortiOS contains an information exposure flaw (CWE-200) that lets a remote unauthenticated attacker bypass the patch for the symbolic link persistenc…KEVEPSS 30%analysed7.5CVE-2026-20133Cisco Catalyst SD-WAN Manager insufficient file system restrictions expose dataCisco Catalyst SD-WAN Software has insufficient file system restrictions that let an attacker read sensitive files on the underlying operating system…KEVEPSS 32%analysed7.5CVE-2025-31125Vite dev server improper access control exposes arbitrary filesVite's dev server fails to restrict file access when a request uses the ?inline&import or ?raw?import query patterns, allowing content of files that …KEVEPSS 65%analysed5.5CVE-2026-20805Windows Desktop Window Manager information disclosureDesktop Windows Manager (DWM) in Microsoft Windows exposes sensitive information to an unauthorized actor, allowing a local attacker with existing ac…KEVEPSS 7.2%analysed7.5CVE-2021-41277Metabase custom GeoJSON map feature allows local file inclusionMetabase does not validate URLs supplied through the custom GeoJSON map setting (admin->settings->maps->custom maps->add a map) before loading them. …KEVEPSS 97%analysed8.6CVE-2024-24919Check Point Security Gateway information disclosure via remote access VPNCheck Point Security Gateways with Remote Access VPN or Mobile Access Software Blades enabled expose information to an unauthenticated attacker reach…KEVEPSS 100%analysed

Source: NIST National Vulnerability Database (record CVE-2016-4784), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.