CVE-2023-41375

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-09-20 · updated 2026-06-17
Weakness: CWE-416

Description

Use after free vulnerability exists in Kostac PLC Programming Software Version 1.6.11.0. Arbitrary code may be executed by having a user open a specially crafted project file which was saved using Kostac PLC Programming Software Version 1.6.9.0 and earlier because the issue exists in parsing of KPP project files. The vendor states that Kostac PLC Programming Software Version 1.6.10.0 or later implements the function which prevents a project file alteration. Therefore, to mitigate the impact of these vulnerabilities, a project file which was saved using Kostac PLC Programming Software Version 1.6.9.0 and earlier needs to be saved again using Kostac PLC Programming Software Version 1.6.10.0 or later.

Affected products

JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software: before 1.6.10.0; 1.6.11.0 — fixed in 1.6.10.0

How to fix

Upgrade to a fixed version: JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software 1.6.10.0. Check the vendor advisory for mitigations.

References

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