CVE-2023-22421

HIGH

Kostac PLC Programming Software <1.6.9.0 - Code Injection

Title source: llm

Description

Out-of-bounds read vulnerability exists in Kostac PLC Programming Software (Former name: Koyo PLC Programming Software) Version 1.6.9.0 and earlier. The insufficient buffer size for the PLC program instructions leads to out-of-bounds read. As a result, opening a specially crafted project file may lead to information disclosure and/or arbitrary code execution.

References (3)

Core 3

Core References

Third Party Advisory

https://jvn.jp/en/vu/JVNVU94966432/

Vendor Advisory

https://www.electronics.jtekt.co.jp/en/topics/202303035258/

Vendor Advisory

https://www.electronics.jtekt.co.jp/jp/topics/2023030313639/

Scores

CVSS v3 7.8

EPSS 0.0007

EPSS Percentile 21.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-125

Status published

Products (1)

jtekt/kostac_plc_programming_software < 1.6.9.0

Published Mar 06, 2023

Tracked Since Feb 18, 2026