Security readout for executives and security teams
Plain-English summary
CVE-2021-46608 affects Bentley MicroStation CONNECT 10.16.0.80. A victim must open a malicious DWG file or visit a malicious page. The flaw can expose limited sensitive information and may help an attacker combine bugs toward code execution, but the provided sources do not show active exploitation.
Executive priority
Treat as a low-priority remediation item unless MicroStation users routinely handle external DWG files. Prioritize normal patch management and user-file handling controls.
Technical view
The issue is a CWE-125 out-of-bounds read in DWG parsing caused by insufficient validation of user-supplied data. ZDI identifies it as ZDI-CAN-15402/ZDI-22-195. CVSS 3.0 is 3.3, reflecting required user interaction, low confidentiality impact, and no direct integrity or availability impact.
Likely exposure
Exposure is limited to environments running Bentley MicroStation CONNECT 10.16.0.80, especially users who receive or open DWG files from external or untrusted sources.
Exploitation context
The source bundle says exploitation requires user interaction. KEV status is false, and no cited source in the bundle states active exploitation in the wild.
Researcher notes
Do not assess this as a standalone remote code execution issue based on the provided evidence. The source says arbitrary code execution may be possible only in conjunction with other vulnerabilities. Patch details are not present in the bundle, so rely on Bentley guidance.
Mitigation direction
- Review Bentley BE-2021-0010 for fixed versions or vendor-supported remediation.
- Apply Bentley-supported updates if the advisory identifies an available fix.
- Restrict opening DWG files from untrusted sources until remediated.
- Use standard endpoint controls for file-origin warnings and attachment screening.
Validation and detection
- Inventory endpoints for Bentley MicroStation CONNECT 10.16.0.80.
- Compare installed versions against Bentley BE-2021-0010 guidance.
- Check whether users process DWG files from external parties.
- Confirm scanners identify CVE-2021-46608 only on affected MicroStation versions.
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-2021-46608 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-2021-0010CVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-22-195/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.