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CVE Record

CVE-2021-46625: This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley V...

This vulnerability allows remote attackers to execute arbitrary code 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 handling of JT files. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15455.

HighCVSS 7.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Bentley View 10.15.0.75 can be made to run attacker-controlled code if a user opens a malicious JT file or visits a malicious page. The risk is mainly to engineering workstations and document-review workflows, not exposed servers. No active exploitation is shown in the provided sources or KEV status.

Executive priority

Treat this as a high-priority workstation risk for engineering and design environments. It is not documented as actively exploited, but compromise could give an attacker code execution on systems that may access sensitive project files.

Technical view

CVE-2021-46625 is a CWE-415 double-free issue in Bentley View JT file handling. The flaw involves failing to validate an object before additional free operations. Successful exploitation requires user interaction and can execute code in the current process context. CVSS is 7.8 high with local attack vector and required user interaction.

Likely exposure

Organizations using Bentley View 10.15.0.75 to view JT or CAD-related files are the primary exposure. Risk increases where users receive external model files, supplier documents, or project files from untrusted sources.

Exploitation context

The provided record describes remote attacker delivery, but exploitation depends on a target opening a malicious file or visiting a malicious page. KEV is false, and the bundle does not provide evidence of active exploitation.

Researcher notes

Evidence supports a double-free in JT parsing with code execution in the current process. The bundle does not include patch version details, exploit maturity, or proof of exploitation. Avoid assuming affected versions beyond Bentley View 10.15.0.75.

Mitigation direction

  • Identify and prioritize systems running Bentley View 10.15.0.75.
  • Check Bentley BE-2021-0005 for vendor-approved updates or remediation.
  • Restrict opening JT files from untrusted external sources.
  • Apply endpoint controls for high-risk engineering workstations.
  • Educate affected users about suspicious CAD/model file handling.

Validation and detection

  • Inventory installed Bentley View versions across engineering endpoints.
  • Confirm whether version 10.15.0.75 is present.
  • Review file-association and email/web download controls for JT files.
  • Check endpoint telemetry for unexpected Bentley View child processes.
  • Track remediation status against Bentley advisory BE-2021-0005.
Prepared
Confidence
medium
Sources
4

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-415: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-46625 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.0HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.8High
CVSS 3.0 vector shape for CVE-2021-46625Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
BentleyView10.15.0.75Listed
Weakness

CWE details

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

CWE-415 · source CWE mapping

Double Free

Double Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.