Security readout for executives and security teams
Plain-English summary
Bentley View 10.15.0.75 can expose limited sensitive information when a user opens a malicious DGN file or visits a malicious page. The standalone severity is low, but the issue matters where staff routinely handle untrusted CAD files because it may support a larger attack chain.
Executive priority
Handle during normal vulnerability remediation unless Bentley View is widely used with external CAD files. Prioritize affected engineering workstations and any unmanaged systems processing third-party DGN content.
Technical view
The flaw is a CWE-125 out-of-bounds read in DGN file parsing. Improper validation of user-controlled data can read past an allocated buffer, causing limited confidentiality impact. Sources state it can be combined with other vulnerabilities for code execution in the current process.
Likely exposure
Exposure is limited to installations of Bentley View 10.15.0.75. Higher-risk groups include engineering, construction, review, and operations teams that receive DGN files from third parties or open CAD content from external sources.
Exploitation context
User interaction is required: the target must open a malicious file or visit a malicious page. The provided bundle says KEV is false and gives no evidence of active exploitation. Treat exploitation claims beyond that as unconfirmed.
Researcher notes
The record combines a low CVSS score with language about possible chaining to code execution. Do not treat this as standalone RCE without additional supporting evidence. Confirm advisory details directly from Bentley and ZDI.
Mitigation direction
- Check Bentley BE-2021-0009 for official fixed versions or workarounds.
- Upgrade or remediate Bentley View 10.15.0.75 according to vendor guidance.
- Restrict opening DGN files from untrusted or unexpected sources.
- Use endpoint controls to limit CAD file handling to managed workstations.
- Educate exposed users about unsolicited CAD files and links.
Validation and detection
- Inventory endpoints for Bentley View 10.15.0.75.
- Confirm whether Bentley’s advisory remediation is applied.
- Identify teams that process third-party DGN files.
- Review security controls for downloaded CAD files and email attachments.
- Document remaining exceptions and compensating controls.
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-2021-46642 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-22-229/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.