CVE-2019-10943 — A vulnerability has been identified in SIMATIC Drive Controller family (All vers

A vulnerability has been identified in SIMATIC Drive Controller family (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V20.8), SIMATIC

01What is this vulnerability?

A vulnerability has been identified in SIMATIC Drive Controller family (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V20.8), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V20.8), SIMATIC S7-1200 CPU family…

02Affected products

Vendor	Product	Versions
Siemens	SIMATIC Drive Controller family	All versions
Siemens	SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)	All versions
Siemens	SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)	All versions < V20.8
Siemens	SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)	All versions >= V20.8
Siemens	SIMATIC S7	1200 CPU family (incl. SIPLUS variants) — All versions < V4.4.0
Siemens	SIMATIC S7	1200 CPU family (incl. SIPLUS variants) — All versions >= V4.4.0
Siemens	SIMATIC S7	1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) — All versions < V2.8.1
Siemens	SIMATIC S7	1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) — All versions >= V2.8.1
Siemens	SIMATIC S7	1500 Software Controller — All versions < V20.8
Siemens	SIMATIC S7	1500 Software Controller — All versions >= V20.8
Siemens	SIMATIC S7	PLCSIM Advanced — All versions < V3.0
Siemens	SIMATIC S7	PLCSIM Advanced — All versions >= V3.0

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: 2019-08-13T18:55:57.000Z
• Last modified: 2024-08-04T22:40:15.602Z

09References

• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-232418.pdf