CVE intelligence and bounded remediation

CVE-2022-33939 — Yokogawa Centum Cs 3000 Cp401 Firmware security vulnerability

High CVSS 7.5

CENTUM VP / CS 3000 controller FCS (CP31, CP33, CP345, CP401, and CP451) contains an issue in processing communication packets, which may lead to resource consumption. If this vulnerability is exploited, an attacker may cause a denial of service (DoS) condition in ADL communication by sending a specially crafted packet to the affected product.

Severity
High
CVSS
7.5 (3.1)
Published
2022-08-16
CISA KEV
Not currently listed
Ecosystem
operating-system

Affected products

  • yokogawa / centum_cs_3000_cp401_firmware
  • yokogawa / centum_cs_3000_cp451_firmware
  • yokogawa / centum_cs_3000_cp33_firmware
  • yokogawa / centum_cs_3000_cp345_firmware
  • yokogawa / centum_cs_3000_cp31_firmware
  • yokogawa / centum_vp_3000_cp401_firmware

Showing 6 representative product identities from 11 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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