CVE-2023-38528

Code execution via X_T parser buffer overwrite

Published Aug 8, 2023 · Updated Oct 15, 2024

Out-of-bounds write in Siemens Parasolid and Teamcenter Visualization allows attackers to execute code when a crafted X_T file is opened. The X_T parser writes past an allocated buffer in Parasolid 34.1 before 34.1.258, 35.0 before 35.0.254, and 35.1 before 35.1.197, and Teamcenter Visualization 14.1 before 14.1.0.11, 14.2 before 14.2.0.6, and 14.3 before 14.3.0.3. Exploitation requires a user or consuming application to open the file and runs code only in the context of the current process.

CVSS severity7.8
High
EPSS probability0.21%
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 write in Siemens Parasolid and Teamcenter Visualization allows attackers to execute code when a crafted X_T file is opened. The X_T parser writes past an allocated buffer in Parasolid 34.1 before 34.1.258, 35.0 before 35.0.254, and 35.1 before 35.1.197, and Teamcenter Visualization 14.1 before 14.1.0.11, 14.2 before 14.2.0.6, and 14.3 before 14.3.0.3. Exploitation requires a user or consuming application to open the file and runs code only in the context of the current process.

The record

CVE
CVE-2023-38528
Published
Aug 8, 2023
Updated
Oct 15, 2024
Vendor
Siemens
Product
Parasolid
Classifications
CWE-787, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 15, 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=0 <V34.1.258
  2. Affected versionversion=0 <V35.0.254
  3. Affected versionversion=0 <V35.1.184
  4. Affected versionversion=0 <V35.1.197

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · Parasolidversion=0 <V34.1.258; version=0 <V35.0.254; version=0 <V35.1.184; version=0 <V35.1.197
Siemens · Teamcenter Visualizationversion=0 <V14.1.0.11; version=0 <V14.2.0.6; version=0 <V14.3.0.3

Published CVSS scores

7.3Siemens AGCVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8Siemens AGCVSS: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-787Out-of-bounds Write
T1204.002User Execution: Malicious 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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