TI-2023-21970 Aliases CVE-2023-41375 GHSA-j9f5-pcrj-v7vq

Use after free in JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software

LOW 35CWE-416Published 2023-09-20 · Updated 2024-09-24

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00204 10th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
JTEKT ELECTRONICS CORPORATION	Kostac PLC Programming Software	up to 1.6.11.0	—	No fix listed	CNA

Kostac PLC Programming Software VendorJTEKT ELECTRONICS CORPORATION Affected up to 1.6.11.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:jtekt:kostac_plc::::::::	before 1.6.10.0	Vulnerable	JTEKT ELECTRONICS CORPORATION
cpe:2.3:a:jtekt:kostac_plc:1.6.11.0:::::::*	1.6.11.0	Vulnerable	JTEKT ELECTRONICS CORPORATION

cpe:2.3:a:jtekt:kostac_plc:*:*:*:*:*:*:*:* Versions before 1.6.10.0 Vulnerable ·JTEKT ELECTRONICS CORPORATION
cpe:2.3:a:jtekt:kostac_plc:1.6.11.0:*:*:*:*:*:*:* Versions 1.6.11.0 Vulnerable ·JTEKT ELECTRONICS CORPORATION

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-41375
2026-10-03 Alias added: GHSA-j9f5-pcrj-v7vq

References

Advisory 2

TI-2024-31508 Out-of-bounds read in JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software CVSS 3.1HIGH 7.8
TI-2024-31507 Stack-based buffer overflow in JTEKT ELECTRONICS CORPORATION Kostac PLC Programming… CVSS 3.1HIGH 7.8
TI-2023-21969 Double free in JTEKT ELECTRONICS CORPORATION Kostac PLC Programming Software CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences