A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100 E
A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions), Other SIPROTEC 4 relays (All versions), Other SIPROTEC Compact relays (All versions), SIPROTEC 4 7SD80 (All versions < V4.70), SIPROTEC 4 7SJ61 (All versions < V4.96), SIPROTEC 4 7SJ62 (All versions < V4.96), SIPROTEC 4 7SJ64 (All versions < V4.96), SIPROTEC 4 7SJ66 (All versions < V4.30), SIPROTEC Compact 7SJ80 (All versions < V4.77), SIPROTEC Compact 7SK80 (All versions < V4.77). An attacker with local access to the engineering system or in a privileged network position and able to obtain certain network traffic could possibly reconstruct access authorization passwords.
- Published
- Mar 8, 2018
- Updated
- Jun 16, 2026
- EPSS
- 0.6% · 45th percentile
- CWE
- CWE-326
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 21 / 40 · 5.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.6%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| siemens | siprotec compact 7sj80 firmware | cpe:2.3:o:siemens:siprotec_compact_7sj80_firmware |
| siemens | siprotec compact 7sj80 | cpe:2.3:h:siemens:siprotec_compact_7sj80 |
| siemens | siprotec compact 7sk80 firmware | cpe:2.3:o:siemens:siprotec_compact_7sk80_firmware |
| siemens | siprotec compact 7sk80 | cpe:2.3:h:siemens:siprotec_compact_7sk80 |
| siemens | siprotec 4 7sj66 firmware | cpe:2.3:o:siemens:siprotec_4_7sj66_firmware |
| siemens | siprotec 4 7sj66 | cpe:2.3:h:siemens:siprotec_4_7sj66 |
| siemens | digsi 4 | cpe:2.3:o:siemens:digsi_4 |
| siemens | en100 ethernet module iec 104 firmware | cpe:2.3:o:siemens:en100_ethernet_module_iec_104_firmware |
| siemens | en100 ethernet module iec 104 | cpe:2.3:h:siemens:en100_ethernet_module_iec_104 |
| siemens | en100 ethernet module dnp3 firmware | cpe:2.3:o:siemens:en100_ethernet_module_dnp3_firmware |
| siemens | en100 ethernet module dnp3 | cpe:2.3:h:siemens:en100_ethernet_module_dnp3 |
| siemens | en100 ethernet module modbus tcp firmware | cpe:2.3:o:siemens:en100_ethernet_module_modbus_tcp_firmware |
and 5 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- siemens digsi 4before 4.92
- siemens en100 ethernet module dnp3 firmwareall versions
- siemens en100 ethernet module iec 104 firmwareall versions
- siemens en100 ethernet module iec 61850 firmwarebefore 4.30
- siemens en100 ethernet module modbus tcp firmwareall versions
- siemens en100 ethernet module profinet io firmwareall versions
- siemens siprotec 4 7sj66 firmwarebefore 4.30
- siemens siprotec compact 7sj80 firmwarebefore 4.77
- siemens siprotec compact 7sk80 firmwarebefore 4.77
Versions reported by the vendor
Affected version ranges reported by the assigning authority (siemens). Independent of NVD's CPE analysis and usually ahead of it.
Siemens DIGSI 4
- All versions < V4.92affected
Siemens EN100 Ethernet module DNP3 variant
- All versions < V1.05.00affected
Siemens EN100 Ethernet module IEC 104 variant
- All versionsaffected
Siemens EN100 Ethernet module IEC 61850 variant
- All versions < V4.30affected
Siemens EN100 Ethernet module Modbus TCP variant
- All versionsaffected
Siemens EN100 Ethernet module PROFINET IO variant
- All versionsaffected
Siemens Other SIPROTEC 4 relays
- All versionsaffected
Siemens Other SIPROTEC Compact relays
- All versionsaffected
Siemens SIPROTEC 4 7SD80
- All versions < V4.70affected
Siemens SIPROTEC 4 7SJ61
- All versions < V4.96affected
Siemens SIPROTEC 4 7SJ62
- All versions < V4.96affected
Siemens SIPROTEC 4 7SJ64
- All versions < V4.96affected
Same product
siemens: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-4840A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100 E31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-326 · Inadequate Encryption StrengthCVSS vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf
- ics-cert.us-cert.gov/advisories/ICSA-18-067-01
Vendor advisories and official records. Exploit/PoC links are deliberately left out.