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Fencer Vulns
high 8.8

CVE-2022-22729 json

CAMS for HIS Server contained in the following Yokogawa Electric products improperly authenticate the receiving packets.

published 2022-03-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-27872

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

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.

Patch / fix

  • yokogawa exaopc r3.80.00
  • yokogawa centum_vp_firmware r6.09.00
  • yokogawa centum_vp_entry_firmware r6.09.00

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-083-01 updated cvss 5.9

Yokogawa CENTUM and Exaopc

  • Yokogawa B/M9000 VP >=R6.01.01 -, <=R8.03.01 Yokogawa B/M9000CS >=R5.04.01, <= R5.05.01 Yokogawa CENTUM CS 3000 >=R3.08.10, <= R3.09.00 Yokogawa CENTUM VP >=R4.01.00, <= R4.03.00, >=R5.01.00, <= R5.04.20, >=R6.01.00, <= R6.08.00 Yokogawa Exaopc >=R3.72.00, <= R3.79.00
    affected: mitigation “CENTUM VP: update to R6.09.00 or later” web-material3.yokogawa.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

  • Yokogawa Electric Corporation CENTUM CS 3000
  • Yokogawa Electric Corporation CENTUM VP
  • Yokogawa Electric Corporation Exaopc

Classification

Weakness
  • CWE-302 Authentication Bypass by Assumed-Immutable Data
  • CWE-287 Improper Authentication

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.