CVE intelligence and bounded remediation

CVE-2022-28329 — Siemens Scalance W1788-2Ia M12 Firmware security vulnerability

Medium CVSS 6.5

A vulnerability has been identified in SCALANCE W1788-1 M12 (All versions < V3.0.0), SCALANCE W1788-2 EEC M12 (All versions < V3.0.0), SCALANCE W1788-2 M12 (All versions < V3.0.0), SCALANCE W1788-2IA M12 (All versions < V3.0.0). Affected devices do not properly handle malformed TCP packets received over the RemoteCapture feature. This could allow an attacker to lead to a denial of service condition which only affects the port used by the RemoteCapture feature.

Severity
Medium
CVSS
6.5 (3.1)
Published
2022-04-12
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-20

Affected products

  • siemens / scalance_w1788-2ia_m12_firmware
  • siemens / scalance_w1788-2_m12_firmware
  • siemens / scalance_w1788-2_eec_m12_firmware
  • siemens / scalance_w1788-1_m12_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

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