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CVE record · CVE-2020-15798

Missing authentication in Siemens SIMATIC HMI Comfort Panels (incl. SIPLUS variants) and others

CVSS 9.8 CriticalCriticalEPSS 0.053 · 92nd percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the CVE Program (CNA: siemens) at 9 Feb 2021, 15:38 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 HMI Comfort Panels (incl. SIPLUS variants)
  • affected All versions < V16 Update 3a
Siemens SIMATIC HMI KTP Mobile Panels
  • affected All versions < V16 Update 3a
Siemens SINAMICS GH150
  • affected All versions
Siemens SINAMICS GL150 (with option X30)
  • affected All versions
Siemens SINAMICS GM150 (with option X30)
  • affected All versions
Siemens SINAMICS SH150
  • affected All versions
Siemens SINAMICS SL150
  • affected All versions
Siemens SINAMICS SM120
  • affected All versions
Siemens SINAMICS SM150
  • affected All versions
Siemens SINAMICS SM150i
  • affected All versions
Identifiers
CVE-2020-15798
CNA
siemens
Weakness (CWE)
CWE-306
Tags
Published
9 Feb 2021
Updated
2 Jun 2026

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
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.053, the 92nd 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 2021. 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.