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CVE Record

CVE-2021-46626: 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 parsing of J2K images. Crafted data in a J2K image can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15456.

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 compromised when a user opens malicious content containing a crafted J2K image. Successful exploitation could run attacker-controlled code with the user's privileges, affecting confidentiality, integrity, and availability on the workstation.

Executive priority

Treat this as a high-priority workstation risk for organizations using Bentley View in file-review workflows. It is not shown as actively exploited here, but it can become serious because successful exploitation may execute code after normal user file interaction.

Technical view

CVE-2021-46626 is a CWE-125 out-of-bounds read in Bentley View J2K image parsing. Crafted J2K data can read past an allocated buffer and be leveraged for code execution in the current process. CVSS v3.0 is 7.8, with no privileges required but user interaction required.

Likely exposure

Exposure is most likely on engineering or review workstations running Bentley View 10.15.0.75, especially where users open externally supplied design files, images, email attachments, downloads, or web-hosted content.

Exploitation context

The sources describe remote attacker code execution, but exploitation requires the target to visit a malicious page or open a malicious file. The bundle does not show CISA KEV listing or other evidence of active exploitation.

Researcher notes

The public bundle attributes this to ZDI-CAN-15456 and ZDI-22-213. The affected product and version are specific: Bentley View 10.15.0.75. Patch details are not included in the supplied evidence, so remediation should be tied back to Bentley's advisory.

Mitigation direction

  • Review Bentley advisory BE-2021-0006 for vendor-approved updates or mitigations.
  • Prioritize removal or upgrade of Bentley View 10.15.0.75 where found.
  • Restrict opening untrusted files in vulnerable Bentley View installations.
  • Use endpoint controls to limit risky file handling on engineering workstations.
  • Check vendor guidance before deploying compensating controls as permanent fixes.

Validation and detection

  • Inventory endpoints for Bentley View version 10.15.0.75.
  • Confirm whether vendor guidance has been applied to affected systems.
  • Identify business groups that process externally supplied J2K or design content.
  • Review security telemetry for suspicious Bentley View process activity.
  • Document any remaining vulnerable installations and their business owners.
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-125: 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-2021-46626 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-2021-46626Attack 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-125 · source CWE mapping

Out-of-bounds Read

Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.