No exploitation reportedFix available

CVE-2016-4785

Q: Is CVE-2016-4785 actively exploited?

Active exploitation of CVE-2016-4785 has not been confirmed. Its EPSS score was 2.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2016-4785?

CVE-2016-4785 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

No exploitation reported by the sources we read.

Published2016-05-31
WeaknessCWE-200

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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. 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.

Timeline

dates in UTC

2016-05-3101:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-4785?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-4785?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Siemens siprotec firmwareversion to verify

Branch	Affected	Fixed in	Source
4.26	= 4.26	no fix published	NVD
—	all versions	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-17-334-01 CISA2 known affected
Siemens SWT3000
TPOP firmware: All versions prior to V01.01.00 · IEC 61850 firmware: All versions prior to V4.29.01
ICSA-17-187-02 CISA1 known affected
Siemens Reyrolle
EN100 Ethernet modules as optional for Reyrolle: All versions prior to V4.29.01
ICSA-17-187-03F CISA9 known affected
ICSA-17-187-03F Siemens SIPROTEC 4 and SIPROTEC Compact (Update F)
Firmware variant PROFINET IO for EN100 Ethernet module · Firmware variant Modbus TCP for EN100 Ethernet module · Firmware variant DNP3 TCP for EN100 Ethernet module · +6 more
ICSA-16-140-02 CISA6 known affected
Siemens SIPROTEC Information Disclosure Vulnerabilities (Update B)
Siemens EN100 Ethernet module included in SIPROTEC 4: <=V4.26 · Siemens EN100 Ethernet module included in SIPROTEC Compact: <=V4.26 · Siemens SIPROTEC Compact model 7SJ80 with Ethernet Service Interface on Port A Firmware: <=V4.75 · +3 more

Full record on NVD

Fix

Vendor fix CISA ICSA-17-334-01 · 2 productsSiemens has provided updated firmware that fixes the vulnerabilities for the following affected products and recommends users update to the newest version:
Vendor fix CISA ICSA-17-334-01 · 2 productsTo obtain the firmware please contact the Customer Support Center:
Vendor fix CISA ICSA-17-334-01 · 2 productssupport.energy@siemens.com
Vendor fix CISA ICSA-17-334-01 · 2 productsSiemens recommends users protect network access with appropriate mechanisms. Siemens also advises that users configure the operational environment according to Siemens ' Operational Guidelines for Industrial Security:
Vendor fix CISA ICSA-17-334-01 · 2 productshttps://www.siemens.com/cert/operational-guidelines-industrial-security
Vendor fix CISA ICSA-17-334-01 · 2 productsPlease note that not all of the devices above are affected by all vulnerabilities. For more information on these vulnerabilities and more detailed mitigation instructions, please see Siemens Security Advisory SSA-350846 at the following location:

Advisories and patches

www.siemens.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.05.3read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-200read 2026-10-23
FIRST EPSSEPSS score2.7 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Published: 2016-05-31
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2016-4785?

Is CVE-2016-4785 actively exploited?

Active exploitation of CVE-2016-4785 has not been confirmed. Its EPSS score was 2.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2016-4785?

CVE-2016-4785 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

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