CVE-2018-11452 — A vulnerability has been identified in Firmware variant IEC 61850 for EN100 Ethe

A vulnerability has been identified in Firmware variant IEC 61850 for EN100 Ethernet module (All versions < V4.33), Firmware variant PROFINET IO for EN100 Ethernet module (All versions), Firmware variant Modbus TCP for EN100 Ethernet module (All versions), Firmware variant DNP

01What is this vulnerability?

A vulnerability has been identified in Firmware variant IEC 61850 for EN100 Ethernet module (All versions < V4.33), Firmware variant PROFINET IO for EN100 Ethernet module (All versions), Firmware variant Modbus TCP for EN100 Ethernet module (All versions), Firmware variant DNP3 TCP for EN100 Ethernet module (All versions), Firmware variant IEC104 for EN100 Ethernet module (All versions < V1.22)…

02Affected products

Vendor	Product	Versions
Siemens AG	Firmware variant IEC 61850 for EN100 Ethernet module	All versions < V4.33
Siemens AG	Firmware variant PROFINET IO for EN100 Ethernet module	All versions
Siemens AG	Firmware variant Modbus TCP for EN100 Ethernet module	All versions
Siemens AG	Firmware variant DNP3 TCP for EN100 Ethernet module	All versions
Siemens AG	Firmware variant IEC104 for EN100 Ethernet module	All versions < V1.22

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-07-23T21:00:00.000Z
• Last modified: 2024-08-05T08:10:14.304Z

09References

• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-635129.pdf
• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-325546.pdf
• www.securityfocus.com — https://www.securityfocus.com/bid/106221