Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-22419

24
FAUCET Score

CVE-2023-22419 is an out-of-bounds read vulnerability affecting Kostac PLC Programming Software (formerly Koyo PLC Programming Software) versions 1.6.9.0 and earlier. This flaw occurs when the software processes a comment block in stage information, leading to an inability to verify the end of data. The vulnerability carries a high CVSS score of 7.8, indicating that opening a specially crafted project file could result in information disclosure and/or arbitrary code execution. There is currently no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB, though it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6.9.0CPE matchmatch criteria
cpe:2.3:a:jtekt:kostac_plc_programming_software:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
14.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 14th percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/vu/JVNVU94966432
Third Party Advisory
electronics.jtekt.co.jp / en/topics/202303035258
Vendor Advisory
electronics.jtekt.co.jp / jp/topics/2023030313639
Vendor Advisory