CVE-2025-40936

Code execution via underflowing IGS array read

Published Nov 17, 2025 · Updated Nov 17, 2025

Out-of-bounds read in Siemens PS/IGES Parasolid Translator Component before 29.0.258 allows remote attackers to execute code via a crafted IGS file. The IGS parser fails to validate user-supplied data before indexing an allocated array, permitting a read before the array's start. Exploitation requires a user to open the malicious file and can execute code in the current process or crash the host application.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Siemens PS/IGES Parasolid Translator Component before 29.0.258 allows remote attackers to execute code via a crafted IGS file. The IGS parser fails to validate user-supplied data before indexing an allocated array, permitting a read before the array's start. Exploitation requires a user to open the malicious file and can execute code in the current process or crash the host application.

The record

CVE
CVE-2025-40936
Published
Nov 17, 2025
Updated
Nov 17, 2025
Vendor
Siemens
Product
PS/IGES Parasolid Translator Component
Classifications
CWE-125, CAPEC-540, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 17, 2025Record 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=0 <V29.0.258

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · PS/IGES Parasolid Translator Componentversion=0 <V29.0.258

Published CVSS scores

7.8Siemens ProductCERTCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.3Siemens ProductCERTCVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
CAPEC-540Overread Buffers
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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