What is CVE-2023-42507?

CVE-2023-42507 is a high-severity vulnerability in Jtekt Onsinview2, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-10-17.

How severe is CVE-2023-42507?

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

Buffer overflow in Jtekt Onsinview2

CVE-2023-42507

Stack-based buffer overflow vulnerability exists in OnSinView2 versions 2.0.1 and earlier. If this vulnerability is exploited, information may be disclosed or arbitrary code may be executed by having a user open a specially crafted OnSinView2 project file.

Vulnerability class: Buffer Overflow

Published 2023-10-17 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.002 (11.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 11.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Jtekt Onsinview2
Jtekt Electronics Corporation Onsinview2 — versions versions 2.0.1 and earlier

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.electronics.jtekt.co.jp/en/topics/202310175488/ (Vendor Advisory)
jvn.jp/en/vu/JVNVU98392064/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-42507?: CVE-2023-42507 is a high-severity vulnerability in Jtekt Onsinview2, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-10-17.
How severe is CVE-2023-42507?: High severity. CVSS v3 base score is 7.8 out of 10.