CVE-2023-51439

Code execution via CGM structure overread

Published Jan 9, 2024 · Updated Apr 17, 2025

Out-of-bounds read in Siemens JT2Go and Teamcenter Visualization allows attackers to execute code through a crafted CGM file. The CGM parser reads past the end of an allocated structure when processing malformed file data. A user must open the file, and resulting code runs only in the context of the current application process.

CVSS severity7.8
High
EPSS probability0.26%
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 JT2Go and Teamcenter Visualization allows attackers to execute code through a crafted CGM file. The CGM parser reads past the end of an allocated structure when processing malformed file data. A user must open the file, and resulting code runs only in the context of the current application process.

The record

CVE
CVE-2023-51439
Published
Jan 9, 2024
Updated
Apr 17, 2025
Vendor
Siemens
Product
Teamcenter Visualization
Classifications
CWE-125, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 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=All versions < V13.3.0.13
  2. Affected versionversion=All versions < V14.1.0.12
  3. Affected versionversion=All versions < V14.2.0.9
  4. Affected versionversion=All versions < V14.3.0.6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · Teamcenter Visualizationversion=All versions < V13.3.0.13; version=All versions < V14.1.0.12; version=All versions < V14.2.0.9; version=All versions < V14.3.0.6
Siemens · JT2Goversion=All versions < V14.3.0.6

Published CVSS scores

7.8Siemens ProductCERTCVSS: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.

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
T1204.002Malicious File
T1203Exploitation for Client Execution

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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