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CVE record · CVE-2021-37204

Siemens SIMATIC Drive Controller family: A vulnerability has been identified in SIMATIC Drive Controller family (All versions <…

CVSS 7.5 HighEPSS 0.022 · 82nd percentile

Published by the CVE Program (CNA: siemens) at 9 Feb 2022, 15:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Siemens SIMATIC Drive Controller family
  • affected All versions < V2.9.2
Other versions: unknown
Siemens SIMATIC Drive Controller family
  • affected All versions >= V2.9.2 < V2.9.4
Other versions: unknown
Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)
  • affected All versions
Other versions: unknown
Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
  • affected All versions < V21.9
Other versions: unknown
Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
  • affected All versions >= V21.9 < V21.9.4
Other versions: unknown
Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 Ready4Linux
  • affected All versions
Other versions: unknown
Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
  • affected All versions < V4.5.0
Other versions: unknown
Siemens SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
  • affected All versions >= V4.5.0 < V4.5.2
Other versions: unknown
Siemens SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
  • affected All versions < V2.9.2
Other versions: unknown
Siemens SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
  • affected All versions >= V2.9.2 < V2.9.4
Other versions: unknown
Siemens SIMATIC S7-1500 Software Controller
  • affected All versions < V21.9
Other versions: unknown
Siemens SIMATIC S7-1500 Software Controller
  • affected All versions >= V21.9 < V21.9.4
Other versions: unknown
Siemens SIMATIC S7-PLCSIM Advanced
  • affected All versions < V4.0
Other versions: unknown
Siemens SIMATIC S7-PLCSIM Advanced
  • affected All versions >= V4.0 < V4.0 SP1
Other versions: unknown
Siemens SIPLUS TIM 1531 IRC
  • affected All versions < V2.3.6
Other versions: unknown
Siemens TIM 1531 IRC
  • affected All versions < V2.3.6
Other versions: unknown
Identifiers
CVE-2021-37204
CNA
siemens
Weakness (CWE)
CWE-672
Tags
Published
9 Feb 2022
Updated
18 Apr 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C CNA (siemens)
  • CISA KEV Not listed.
  • EPSS 0.022, the 82nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 9 Feb 2022. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.