CVE-2023-42507

Code execution via malformed project row count

Published Oct 17, 2023 · Updated Sep 13, 2024

Stack-based buffer overflow in JTEKT ELECTRONICS OnSinView2 2.0.1 and earlier allows attackers to execute code via a crafted KMDF file. The project-file parser accesses a block using an unvalidated row count, overflowing a stack buffer. Execution requires a user to open the modified project file; successful exploitation can also disclose information.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in JTEKT ELECTRONICS OnSinView2 2.0.1 and earlier allows attackers to execute code via a crafted KMDF file. The project-file parser accesses a block using an unvalidated row count, overflowing a stack buffer. Execution requires a user to open the modified project file; successful exploitation can also disclose information.

The record

CVE
CVE-2023-42507
Published
Oct 17, 2023
Updated
Sep 13, 2024
Vendor
JTEKT ELECTRONICS CORPORATION
Product
OnSinView2
Classifications
CWE-121, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=versions 2.0.1 and earlier

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

JTEKT ELECTRONICS CORPORATION · OnSinView2version=versions 2.0.1 and earlier

Published CVSS scores

7.8JPCERT/CCCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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