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CVE Record

CVE-2021-46153: A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All...

A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All versions). Affected application contains a memory corruption vulnerability while parsing NEU files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14645, ZDI-CAN-15305, ZDI-CAN-15589, ZDI-CAN-15599)

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-46153 affects Siemens Simcenter Femap V2020.2 and V2021.1. A malicious NEU file can trigger memory corruption when opened, potentially running code with the same privileges as the user. This is most relevant to engineering workstations that exchange or review external model files.

Executive priority

Prioritize remediation where affected Femap systems process third-party engineering files. Business risk is targeted workstation compromise through normal file-handling activity, not internet-wide exposure based on the provided evidence.

Technical view

The CVE describes a CWE-119 memory corruption issue in Simcenter Femap NEU file parsing. Successful exploitation could execute code in the current process context. The source bundle does not provide CVSS, detailed root cause, exploit maturity, or confirmed fixed build details.

Likely exposure

Exposure is likely limited to systems running Simcenter Femap V2020.2 or V2021.1 that open NEU files, especially from suppliers, customers, shared repositories, or email attachments.

Exploitation context

No provided source states active exploitation, and the CVE is not marked KEV. Exploitation appears file-based: a user or workflow must process a crafted NEU file in an affected Femap version.

Researcher notes

The bundle links Siemens SSA-609880 and four ZDI advisories, but does not include CVSS details or per-advisory technical deltas. Avoid assuming public exploit availability or a specific patch level without checking Siemens guidance.

Mitigation direction

  • Review Siemens SSA-609880 for official fixes or workarounds.
  • Identify and upgrade affected Simcenter Femap installations per Siemens guidance.
  • Limit NEU file handling to trusted sources until remediated.
  • Treat externally supplied NEU files as untrusted content.
  • Use least-privilege accounts for engineering workstation activity.

Validation and detection

  • Inventory Simcenter Femap versions on engineering workstations.
  • Confirm whether V2020.2 or V2021.1 remains installed.
  • Review workflows that import NEU files from external parties.
  • Check Siemens SSA-609880 for applicable fixed versions or mitigations.
  • Review security telemetry for suspicious Femap crashes or unexpected child processes.
Prepared
Confidence
medium
Sources
7

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

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CVE-2021-46153 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
SiemensSimcenter Femap V2020.2All versionsListed
SiemensSimcenter Femap V2021.1All versionsListed
Weakness

CWE details

CWE-119

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.