What is CVE-2023-22424?

CVE-2023-22424 is a high-severity vulnerability in Jtekt Kostac Plc Programming Software, classified under Use After Free. CVSS score: 7.8/10. Published 2023-03-06.

How severe is CVE-2023-22424?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2023-22424 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Jtekt Kostac Plc Programming Software

CVE-2023-22424

Use-after-free vulnerability exists in Kostac PLC Programming Software (Former name: Koyo PLC Programming Software) Version 1.6.9.0 and earlier. With the abnormal value given as the maximum number of columns for the PLC program, the process accesses the freed memory. As a result, opening a specially crafted project file may lead to information disclosure and/or arbitrary code execution.

Vulnerability class: Use-After-Free

EPSS: 0.003 (23.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Jtekt Kostac_plc_programming_software
Jtekt Electronics Corporation Kostac Plc Programming Software (Former Name: Koyo Software) — versions Version 1.6.9.0 and earlier

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

karimhabush/cyberowl

References

vultures@jpcert.or.jp (Vendor Advisory)
vultures@jpcert.or.jp (Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory)

Frequently asked questions

What is CVE-2023-22424?: CVE-2023-22424 is a high-severity vulnerability in Jtekt Kostac Plc Programming Software, classified under Use After Free. CVSS score: 7.8/10. Published 2023-03-06.
How severe is CVE-2023-22424?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2023-22424 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.