CVE-2018-8838 — A weakness in access controls in CENTUM CS 1000 all versions, CENTUM CS 3000 versions R3.09.50 and earlier, CENTUM CS 3000 Small versions R3.09.50 and earlier, CENTUM VP versions R6.03.10 and earlier, CENTUM VP Small versions R6.03.10 and earlier, CENTUM VP Basic versions R6.03.10 and earlier, Exaopc versions R3.75.00 and earlier, B/M9000 CS all versions, and B/M9000 VP versions R8.01.01 and earlier may allow a local attacker to exploit the message management function of the system

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MEDIUM

A weakness in access controls in CENTUM CS 1000 all versions, CENTUM CS 3000 versions R3.09.50 and earlier, CENTUM CS 3000 Small versions R3.09.50 and earlier, CENTUM VP versions R6.03.10 and earlier, CENTUM VP Small versions R6.03.10 and earlier, CENTUM VP Basic versions R6.03.10 and earlier, Exaopc versions R3.75.00 and earlier, B/M9000 CS all versions, and B/M9000 VP versions R8.01.01 and earlier may allow a local attacker to exploit the message management function of the system

Published Apr 17, 2018

6.5

MEDIUM

CVSS 3.0

EPSS 0.29%

Description

A weakness in access controls in CENTUM CS 1000 all versions, CENTUM CS 3000 versions R3.09.50 and earlier, CENTUM CS 3000 Small versions R3.09.50 and earlier, CENTUM VP versions R6.03.10 and earlier, CENTUM VP Small versions R6.03.10 and earlier, CENTUM VP Basic versions R6.03.10 and earlier, Exaopc versions R3.75.00 and earlier, B/M9000 CS all versions, and B/M9000 VP versions R8.01.01 and earlier may allow a local attacker to exploit the message management function of the system. A CVSS v3 base score of 6.5 has been calculated; the CVSS vector string is (AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H).

Affected products

Vendor Ics-Cert Product Yokogawa CENTUM and Exaopc Default
n/a
- Version
  CENTUM series CENTUM CS 1000 all versions CENTUM CS 3000 versions R3.09.50 and prior CENTUM CS 3000 Small versions R3.09.50 and prior CENTUM VP versions R6.03.10 and prior CENTUM VP Small versions R6.03.10 and prior CENTUM VP Basic versions R6.03.10 and prior Exaopc versions R3.75.00 and prior B/M9000 CS all versions and B/M9000 VP versions R8.01.01 and prior.
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Ics-Cert

Yokogawa CENTUM and Exaopc

n/a

Version	Status	Constraints
CENTUM series CENTUM CS 1000 all versions CENTUM CS 3000 versions R3.09.50 and prior CENTUM CS 3000 Small versions R3.09.50 and prior CENTUM VP versions R6.03.10 and prior CENTUM VP Small versions R6.03.10 and prior CENTUM VP Basic versions R6.03.10 and prior Exaopc versions R3.75.00 and prior B/M9000 CS all versions and B/M9000 VP versions R8.01.01 and prior.	affected	-

Remediation

No remediation recorded yet.

Metrics

0.29% 0.00288

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00288

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (8 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.29% (0.00288)	19.30th	v5 (v2026.06.15)
Sep 20, 2026	0.29% (0.00294)	22.18th	v5 (v2026.06.15)
Jul 20, 2024	0.04% (0.00042)	0.36th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	0.50th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00885)	27.89th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00885)	10.50th	v2 (v2022.01.01)
Feb 3, 2022	0.22% (0.00221)	1.67th	v5 (v2026.06.15)
Apr 14, 2021	0.22% (0.00221)	0.00th	v1

Weaknesses (0)

No CWE recorded.

References (1)

https://ics-cert.us-cert.gov/advisories/ICSA-18-102-01
x_refsource_MISCThird Party AdvisoryUS Government Resource

Link	Providers	Tags
https://ics-cert.us-cert.gov/advisories/ICSA-18-102-01		x_refsource_MISCThird Party AdvisoryUS Government Resource

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner icscert

Published Apr 17, 2018

Updated Sep 17, 2024

Reserved Mar 20, 2018

Link CVE-2018-8838

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-8838

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-8838