CVE intelligence and bounded remediation

CVE-2017-6867 — Siemens Simatic Wincc security vulnerability

Medium CVSS 4.9

A vulnerability was discovered in Siemens SIMATIC WinCC (V7.3 before Upd 11 and V7.4 before SP1), SIMATIC WinCC Runtime Professional (V13 before SP2 and V14 before SP1), SIMATIC WinCC (TIA Portal) Professional (V13 before SP2 and V14 before SP1) that could allow an authenticated, remote attacker who is member of the "administrators" group to crash services by sending specially crafted messages to the DCOM interface.

Severity
Medium
CVSS
4.9 (3.0)
Published
2017-05-11
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-787, CWE-20

Affected products

  • siemens / simatic_wincc / 7.3
  • siemens / simatic_wincc / 7.4
  • siemens / simatic_wincc_(tia_portal) / 13
  • siemens / simatic_wincc_(tia_portal) / 14
  • siemens / simatic_wincc_runtime / 13
  • siemens / simatic_wincc_runtime / 14

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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