CVE-2022-39147

Code execution via uninitialized X_T parser pointer

Published Sep 13, 2022 · Updated Aug 3, 2024

Uninitialized pointer access in Siemens Parasolid and Simcenter Femap allows attackers to execute code through crafted X_T files. During X_T model parsing, the affected file parser accesses a pointer that has not been initialized, enabling code execution in the current process. Exploitation requires a user to open an attacker-supplied file, and the resulting code runs with that process's privileges.

CVSS severity7.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Uninitialized pointer access in Siemens Parasolid and Simcenter Femap allows attackers to execute code through crafted X_T files. During X_T model parsing, the affected file parser accesses a pointer that has not been initialized, enabling code execution in the current process. Exploitation requires a user to open an attacker-supplied file, and the resulting code runs with that process's privileges.

The record

CVE
CVE-2022-39147
Published
Sep 13, 2022
Updated
Aug 3, 2024
Vendor
Siemens
Product
Parasolid
Classifications
CWE-824, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=All versions < V33.1.262
  2. Affected versionversion=All versions >= V33.1.262 < V33.1.263
  3. Affected versionversion=All versions < V34.0.252
  4. Affected versionversion=All versions < V34.1.242
  5. Affected versionversion=All versions < V35.0.161
  6. Affected versionversion=All versions >= V35.0.161 < V35.0.164

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Siemens · Parasolidversion=All versions < V33.1.262; version=All versions >= V33.1.262 < V33.1.263; version=All versions < V34.0.252; version=All versions < V34.1.242; version=All versions < V35.0.161; version=All versions >= V35.0.161 < V35.0.164
Siemens · Simcenter Femapversion=All versions < V2022.1.3; version=All versions < V2022.2.2

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-824Access of Uninitialized Pointer
T1203Exploitation for Client Execution
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo