dbcve.org
MicrostationApplication · Bentley

CVE-2021-46654

MEDIUM · 5.5 CVSS v3.1 Published 2022-02-18
Fix available
A fix is available. Upgrade to 10.16.02 or later.
See remediation →
58/100
Remediation priority · Elevated
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
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-15540.

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

An out-of-bounds read vulnerability in Bentley View 10.15.0.75 during DGN file parsing allows remote attackers to disclose sensitive information by lacking proper validation of user-supplied data. Exploitation requires user interaction (opening malicious DGN file) and can be chained with other vulnerabilities for code execution.

MitigationApply Bentley's security patch for this vulnerability; until patch is available, instruct users to avoid opening untrusted DGN files from unknown sources.

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
MicrostationApplication
Affected:< 10.16.02
ViewApplication
Affected:< 10.16.02

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
None
Availability
None

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

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 installed Bentley product
    Check the installed application name - either Bentley Microstation or Bentley View - through Add/Remove Programs, the application UI, or the executable file properties
    Affected if The installed product is Microstation or View
  2. Check installed version
    Locate the version information for the installed Bentley application, typically found in Help > About, or by right-clicking the executable and selecting Properties > Details
    Affected if The installed version is earlier than 10.16.02 (for example, 10.15.0.75 as listed in the CVE)
  3. Verify DGN file usage
    Determine if the application is used to open, view, or process DGN files - this is a common workflow file format for Bentley products
    Affected if Users routinely open DGN files from external or untrusted sources

You are affected if you have Microstation or View installed with a version lower than 10.16.02 and your users open DGN files, since the vulnerability triggers during DGN 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.

dbcve · scoped
Upgrade available Upgrade to 10.16.02 or later
Fixed in 10.16.02
Interim mitigation

Apply Bentley's security patch for this vulnerability; until patch is available, instruct users to avoid opening untrusted DGN files from unknown sources.

Recommended fix High confidence

10.16.02

  1. Identify the installed Bentley View or MicroStation version by checking 'About' or the application help menu
  2. Navigate to the official Bentley website (www.bentley.com) and locate the download section for Bentley View or MicroStation
  3. Download the version 10.16.02 or later installer from Bentley's official download portal
  4. Close all Bentley applications before running the installer
  5. Run the installer with administrative privileges and follow the on-screen prompts to complete the upgrade
  6. Restart the system if prompted by the installer
  7. Verify the installed version by checking 'About' in the application to confirm version 10.16.02 or later is now installed
Caveat No specific breaking changes mentioned in the provided advisory material; standard upgrade risks apply

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Microstation Scoped from the published advisory
  • Consultation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
5.0 hours of engineering $880
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,408.

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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-2021-46654 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data