CVE intelligence and bounded remediation

CVE-2019-6578 — Siemens Sinamics Perfect Harmony Gh180 With Nxg I Control Mlfb 6Sr2 Fir… security vulnerability

High CVSS 7.5

A vulnerability has been identified in SINAMICS PERFECT HARMONY GH180 with NXG I control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G28), SINAMICS PERFECT HARMONY GH180 with NXG II control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G28). A denial of service vulnerability exists in the affected products. The vulnerability could be exploited by an attacker with network access to the device. Successful exploitation requires no privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.

Severity
High
CVSS
7.5 (3.1)
Published
2019-05-14
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-400

Affected products

  • siemens / sinamics_perfect_harmony_gh180_with_nxg_i_control_mlfb_6sr2_firmware
  • siemens / sinamics_perfect_harmony_gh180_with_nxg_i_control_mlfb_6sr3_firmware
  • siemens / sinamics_perfect_harmony_gh180_with_nxg_i_control_mlfb_6sr4_firmware
  • siemens / sinamics_perfect_harmony_gh180_with_nxg_ii_control_mlfb_6sr2_firmware
  • siemens / sinamics_perfect_harmony_gh180_with_nxg_ii_control_mlfb_6sr3_firmware
  • siemens / sinamics_perfect_harmony_gh180_with_nxg_ii_control_mlfb_6sr4_firmware

Matched remediation archetype

Resource exhaustion and denial of service

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.