Security readout for executives and security teams
Plain-English summary
Bentley View 10.15.0.75 can mishandle crafted DGN files and expose sensitive information from the application process. Exploitation requires a user to visit malicious content or open a malicious file. The public record rates this low severity, but notes it could help a larger attack chain.
Executive priority
Treat as a targeted workstation risk, not an emergency enterprise-wide incident. Prioritize design, engineering, and review teams that use Bentley View with external files, then apply vendor guidance through normal patch management.
Technical view
CVE-2021-46654 is a CWE-125 out-of-bounds read in Bentley View DGN parsing. The flaw is improper validation of user-supplied data, causing reads past an allocated buffer. CVSS 3.0 is 3.3, with local attack vector, required user interaction, and confidentiality impact only.
Likely exposure
Exposure is limited to endpoints running Bentley View 10.15.0.75, especially users who receive DGN files from external parties or browse to untrusted content that could deliver malicious files.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires user interaction. ZDI and CVE text say the issue can disclose information and may support arbitrary code execution only when chained with other vulnerabilities.
Researcher notes
The source bundle identifies ZDI-CAN-15540 and DGN parsing as the affected surface, but does not provide patch version details, exploit maturity, or indicators. Avoid claiming standalone remote code execution; the record describes code execution potential only in conjunction with other vulnerabilities.
Mitigation direction
- Check Bentley BE-2021-0009 for the supported fixed version or mitigation.
- Update Bentley View where vendor guidance provides a corrected release.
- Restrict opening externally supplied DGN files until affected clients are updated.
- Route untrusted design files through established file-screening and sandboxing workflows.
- Warn Bentley View users against opening unexpected DGN files or links.
Validation and detection
- Inventory endpoints for Bentley View 10.15.0.75.
- Confirm whether users process DGN files from customers, partners, or public sources.
- Review Bentley advisory BE-2021-0009 for affected and corrected versions.
- Check security telemetry for suspicious Bentley View crashes or abnormal file-open events.
- Document compensating controls for systems that cannot be updated promptly.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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.
Open ATT&CK lookupExecution 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 lookupCVE-2021-46654 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 3.3 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N1.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
3.3LowVector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0009CVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-22-241/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
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.