Is CVE-2018-8838 actively exploited?

No active exploitation of CVE-2018-8838 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-8838 be exploited remotely?

No. CVE-2018-8838 requires local access to exploit.

What is the CVSS score of CVE-2018-8838?

CVE-2018-8838 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2018-8838

NVD-CWE-noinfoPublished: April 17, 2018· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official 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).

NVD Source

Technical Analysis

CVE-2018-8838 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.5.