CVE-2019-13945 — A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl

A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family < V4.x (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family V4.x (incl. SIPLUS variants) (All versions with Function State (FS) &l

01What is this vulnerability?

A vulnerability has been identified in SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family < V4.x (incl. SIPLUS variants) (All versions), SIMATIC S7-1200 CPU family V4.x (incl. SIPLUS variants) (All versions with Function State (FS) < 11), SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1) (All versions <= V2.3.0 and Function State (FS) <= 3), SIMATIC…

02Affected products

Vendor	Product	Versions
Siemens AG	SIMATIC S7	1200 CPU family (incl. SIPLUS variants) — All versions
Siemens AG	SIMATIC S7	1200 CPU family < V4.x (incl. SIPLUS variants) — All versions
Siemens AG	SIMATIC S7	1200 CPU family V4.x (incl. SIPLUS variants) — All versions with Function State (FS) < 11
Siemens AG	SIMATIC S7	200 SMART CPU CR20s (6ES7 288-1CR20-0AA1) — All versions <= V2.3.0 and Function State (FS) <= 3
Siemens AG	SIMATIC S7	200 SMART CPU CR30s (6ES7 288-1CR30-0AA1) — All versions <= V2.3.0 and Function State (FS) <= 3
Siemens AG	SIMATIC S7	200 SMART CPU CR40 (6ES7 288-1CR40-0AA0) — All versions <= V2.2.2 and Function State (FS) <= 8
Siemens AG	SIMATIC S7	200 SMART CPU CR40s (6ES7 288-1CR40-0AA1) — All versions <= V2.3.0 and Function State (FS) <= 3
Siemens AG	SIMATIC S7	200 SMART CPU CR60 (6ES7 288-1CR60-0AA0) — All versions <= V2.2.2 and Function State (FS) <= 10
Siemens AG	SIMATIC S7	200 SMART CPU CR60s (6ES7 288-1CR60-0AA1) — All versions <= V2.3.0 and Function State (FS) <= 3
Siemens AG	SIMATIC S7	200 SMART CPU SR20 (6ES7 288-1SR20-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 11
Siemens AG	SIMATIC S7	200 SMART CPU SR30 (6ES7 288-1SR30-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 10
Siemens AG	SIMATIC S7	200 SMART CPU SR40 (6ES7 288-1SR40-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 10
Siemens AG	SIMATIC S7	200 SMART CPU SR60 (6ES7 288-1SR60-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 12
Siemens AG	SIMATIC S7	200 SMART CPU ST20 (6ES7 288-1ST20-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 9
Siemens AG	SIMATIC S7	200 SMART CPU ST30 (6ES7 288-1ST30-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 9
Siemens AG	SIMATIC S7	200 SMART CPU ST40 (6ES7 288-1ST40-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 8
Siemens AG	SIMATIC S7	200 SMART CPU ST60 (6ES7 288-1ST60-0AA0) — All versions <= V2.5.0 and Function State (FS) <= 8
Siemens AG	SIMATIC S7	200 SMART CPU family — All versions

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: 2019-12-12T13:19:51.000Z
• Last modified: 2024-08-05T00:05:44.067Z

09References

• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-686531.pdf