CVE intelligence and bounded remediation

CVE-2019-6572 — Siemens Simatic Hmi Comfort Panels Firmware security vulnerability

Critical CVSS 9.1

A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15.1 Update 1), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All versions < V15.1 Update 1), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 und KTP900F (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Advanced (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Professional (All versions < V15.1 Update 1), SIMATIC WinCC (TIA Portal) (All versions < V15.1 Update 1), SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel) (All versions). The affected device offered SNMP read and write capacities with a publicly know hardcoded community string. The security vulnerability could be exploited by an attacker with network access to the affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise confidentiality and integrity of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.

Severity
Critical
CVSS
9.1 (3.1)
Published
2019-05-14
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-200, CWE-798

Affected products

  • siemens / simatic_hmi_comfort_panels_firmware
  • siemens / simatic_hmi_comfort_outdoor_panels_firmware
  • siemens / simatic_hmi_ktp_mobile_panels_ktp400f_firmware
  • siemens / simatic_hmi_ktp_mobile_panels_ktp700_firmware
  • siemens / simatic_hmi_ktp_mobile_panels_ktp700f_firmware
  • siemens / simatic_hmi_ktp_mobile_panels_ktp900_firmware

Showing 6 representative product identities from 13 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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