CVE intelligence and bounded remediation

CVE-2022-22729 — CAMS for HIS Server contained in the following Yokogawa Electric products improperly authenticate the receiving packets

High CVSS 8.8

CAMS for HIS Server contained in the following Yokogawa Electric products improperly authenticate the receiving packets. The authentication may be bypassed via some crafted packets: CENTUM CS 3000 versions from R3.08.10 to R3.09.00, CENTUM VP versions from R4.01.00 to R4.03.00, from R5.01.00 to R5.04.20, and from R6.01.00 to R6.08.00, and Exaopc versions from R3.72.00 to R3.79.00.

Severity
High
CVSS
8.8 (3.1)
Published
2022-03-11
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-302, CWE-287

Affected products

  • yokogawa / centum_cs_3000_firmware
  • yokogawa / centum_cs_3000_entry_firmware
  • yokogawa / centum_vp_firmware
  • yokogawa / centum_vp_entry_firmware
  • yokogawa / exaopc

Showing 5 representative product identities from 9 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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