CVE-2020-15798

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Summary

CVECVE-2020-15798
StatePUBLISHED
Assignersiemens
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-09 17:15:13 UTC
Updated2026-06-02 20:16:25 UTC
DescriptionA vulnerability has been identified in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions < V16 Update 3a), SIMATIC HMI KTP Mobile Panels (All versions < V16 Update 3a), SINAMICS GH150 (All versions), SINAMICS GL150 (with option X30) (All versions), SINAMICS GM150 (with option X30) (All versions), SINAMICS SH150 (All versions), SINAMICS SL150 (All versions), SINAMICS SM120 (All versions), SINAMICS SM150 (All versions), SINAMICS SM150i (All versions). Affected devices with enabled telnet service do not require authentication for this service. This could allow a remote attacker to gain full access to the device. (ZDI-CAN-12046)

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.016690000 probability, percentile 0.824640000 (date 2026-06-08)

Problem Types: CWE-306 | CWE-306 CWE-306: Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary9.3AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Siemens Simatic Hmi Comfort Panels - All All All
Operating System Siemens Simatic Hmi Comfort Panels Firmware All All All All
Operating System Siemens Simatic Hmi Comfort Panels Firmware 16.0 - All All
Operating System Siemens Simatic Hmi Comfort Panels Firmware 16.0 update1 All All
Operating System Siemens Simatic Hmi Comfort Panels Firmware 16.0 update2 All All
Operating System Siemens Simatic Hmi Comfort Panels Firmware 16.0 update3 All All
Hardware Siemens Simatic Hmi Ktp Mobile Panels - All All All
Operating System Siemens Simatic Hmi Ktp Mobile Panels Firmware All All All All
Operating System Siemens Simatic Hmi Ktp Mobile Panels Firmware 16.0 - All All
Operating System Siemens Simatic Hmi Ktp Mobile Panels Firmware 16.0 update1 All All
Operating System Siemens Simatic Hmi Ktp Mobile Panels Firmware 16.0 update2 All All
Operating System Siemens Simatic Hmi Ktp Mobile Panels Firmware 16.0 update3 All All
Hardware Siemens Sinamics Gh150 - All All All
Operating System Siemens Sinamics Gh150 Firmware - All All All
Hardware Siemens Sinamics Gl150 - All All All
Operating System Siemens Sinamics Gl150 Firmware - All All All
Hardware Siemens Sinamics Gm150 - All All All
Operating System Siemens Sinamics Gm150 Firmware - All All All
Hardware Siemens Sinamics Sh150 - All All All
Operating System Siemens Sinamics Sh150 Firmware - All All All
Hardware Siemens Sinamics Sl150 - All All All
Operating System Siemens Sinamics Sl150 Firmware - All All All
Hardware Siemens Sinamics Sm120 - All All All
Operating System Siemens Sinamics Sm120 Firmware - All All All
Hardware Siemens Sinamics Sm150 - All All All
Hardware Siemens Sinamics Sm150i - All All All
Operating System Siemens Sinamics Sm150i Firmware - All All All
Operating System Siemens Sinamics Sm150 Firmware - All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Siemens SIMATIC HMI Comfort Panels Incl. SIPLUS Variants affected All versions < V16 Update 3a Not specified
CNA Siemens SIMATIC HMI KTP Mobile Panels affected All versions < V16 Update 3a Not specified
CNA Siemens SINAMICS GH150 affected All versions Not specified
CNA Siemens SINAMICS GL150 With Option X30 affected All versions Not specified
CNA Siemens SINAMICS GM150 With Option X30 affected All versions Not specified
CNA Siemens SINAMICS SH150 affected All versions Not specified
CNA Siemens SINAMICS SL150 affected All versions Not specified
CNA Siemens SINAMICS SM120 affected All versions Not specified
CNA Siemens SINAMICS SM150 affected All versions Not specified
CNA Siemens SINAMICS SM150i affected All versions Not specified

References

ReferenceSourceLinkTags
Siemens SIMATIC HMI Comfort Panels & SIMATIC HMI KTP Mobile Panels | CISA af854a3a-2127-422b-91ae-364da2661108 us-cert.cisa.gov Third Party Advisory, US Government Resource
cert-portal.siemens.com/productcert/pdf/ssa-752103.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com Patch, Vendor Advisory
cert-portal.siemens.com/productcert/pdf/ssa-520004.pdf af854a3a-2127-422b-91ae-364da2661108 cert-portal.siemens.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 590440 Siemens SIMATIC HMI Comfort Panels and SIMATIC HMI KTP Mobile Panels Vulnerability (ICSA-21-033-02)
  • 590702 Siemens SINAMICS Medium Voltage Products Telnet (Update A) Vulnerability (ICSA-21-131-13)
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