dbcve.org
Simcenter FemapApplication · Siemens

CVE-2021-46155

HIGH · 7.8 CVSS v3.1 Published 2022-02-09
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
81/100
Remediation priority · High
No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All versions). Affected application contains a stack based buffer overflow vulnerability while parsing NEU files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14683, ZDI-CAN-15283, ZDI-CAN-15303, ZDI-CAN-15593)

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Stack-based buffer overflow vulnerability in Simcenter Femap when parsing NEU (Neutral) files. Insufficient bounds checking during NEU file parsing allows overwriting stack memory, potentially enabling arbitrary code execution in the context of the current process.

MitigationRestrict opening of NEU files from untrusted sources. Apply vendor-provided patches for Simcenter Femap V2020.2 and V2021.1 when available.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Simcenter FemapApplication
Affected:= 2020.2= 2021.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Simcenter Femap installation version
    Open Simcenter Femap and navigate to Help > About, or check the program's executable file properties (right-click on Femap.exe > Properties > Details) to view the product version
    Affected if Version shows 2020.2 or 2021.1 specifically
  2. Confirm NEU file parsing capability
    Check if the NEU file import feature is available in the application (typically via File > Import > Neutral or similar menu path)
    Affected if NEU file import option is present and accessible in the user interface
  3. Verify vulnerability context
    Review whether your workflow involves opening or importing NEU (Neutral) files from any source
    Affected if You regularly import or open NEU files in Simcenter Femap

You are affected if your installed Simcenter Femap version is exactly 2020.2 or 2021.1 AND you use or may open NEU (Neutral) files, as the buffer overflow occurs during NEU file parsing.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Restrict opening of NEU files from untrusted sources. Apply vendor-provided patches for Simcenter Femap V2020.2 and V2021.1 when available.

Fix this in Simcenter Femap Scoped from the published advisory
  • Consultation4.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-46155 in production — separate from our analysis above.

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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