CVE-2023-22421
Out-of-bounds read vulnerability exists in Kostac PLC Programming Software (Former name: Koyo PLC Programming Software) Version 1.6.9.0 and earlier.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- jtekt/kostac plc programming software
- Source
- vultures@jpcert.or.jp
References
- https://jvn.jp/en/vu/JVNVU94966432/Third Party Advisory
- 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
- https://www.electronics.jtekt.co.jp/en/topics/202303035258/Vendor Advisory
- https://www.electronics.jtekt.co.jp/jp/topics/2023030313639/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.