CVE-2023-22421

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory co.jp Vendor Advisory co.jp
Affected: JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software (Former name: Koyo PLC Programming Software)
Published at:
Updated at:

References

Link Tags
https://www.electronics.jtekt.co.jp/en/topics/202303035258/ vendor advisory
https://www.electronics.jtekt.co.jp/jp/topics/2023030313639/ vendor advisory
https://jvn.jp/en/vu/JVNVU94966432/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-22421?
CVE-2023-22421 has been scored as a high severity vulnerability.
How to fix CVE-2023-22421?
To fix CVE-2023-22421, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-22421 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-22421 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-22421?
CVE-2023-22421 affects JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software (Former name: Koyo PLC Programming Software).
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