In CX-One Versions 4.42 and prior (CX-Programmer Versions 9.66 and prior and CX-Server Versions 5.0.23 and prior), when processing project files, the application fails to check if it is referencing freed memory. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.
Published 2018-12-04 22:29:00
Updated 2019-10-09 23:37:32
Source ICS-CERT
View at NVD,   CVE.org
Vulnerability category: Execute code

Exploit prediction scoring system (EPSS) score for CVE-2018-18989

0.11%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 44 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-18989

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
NIST
7.8
HIGH CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1.8
5.9
NIST

CWE ids for CVE-2018-18989

  • Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
    Assigned by:
    • ics-cert@hq.dhs.gov (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2018-18989

Products affected by CVE-2018-18989

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