Security readout for executives and security teams
Plain-English summary
CVE-2021-46611 is an information-disclosure flaw in Bentley MicroStation CONNECT 10.16.0.80. A victim must open malicious content or visit a malicious page. The business risk is mainly workstation compromise support: leaked memory could help an attacker chain other bugs, but the cited CVSS rating is low.
Executive priority
Treat this as normal patch-cycle work unless affected users routinely process untrusted project files. It is low severity by CVSS, but still relevant because memory disclosure can support broader attack chains against engineering workstations.
Technical view
The flaw is a CWE-125 out-of-bounds read in JP2 image parsing. Improper validation of user-supplied data can read past an allocated buffer, disclosing sensitive information. ZDI notes it may be combined with other vulnerabilities to execute code in the current process context.
Likely exposure
Exposure is limited to environments running Bentley MicroStation CONNECT 10.16.0.80, especially users who receive or open JP2 images, CAD files, links, or project content from external parties. This is a client-side exposure, not an unauthenticated internet-facing service issue based on the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires user interaction: the target must visit a malicious page or open a malicious file. The sources describe potential chaining with other vulnerabilities, not standalone remote code execution.
Researcher notes
Key constraints are version-specific affected scope and limited public detail in the bundle. Do not assume active exploitation, additional affected Bentley products, or a specific fix beyond checking Bentley guidance. Validation should focus on version inventory and untrusted-file exposure.
Mitigation direction
- Inventory MicroStation CONNECT installations and identify version 10.16.0.80.
- Review Bentley BE-2021-0008 for vendor-approved update or mitigation guidance.
- Restrict opening JP2 files and project content from untrusted sources.
- Prioritize remediation for teams handling external CAD or image submissions.
- Use endpoint monitoring for suspicious MicroStation crashes or file-handling anomalies.
Validation and detection
- Confirm installed MicroStation CONNECT versions across engineering workstations.
- Check whether JP2-handling workflows accept files from external sources.
- Review endpoint telemetry for MicroStation crashes around JP2 or image parsing.
- Verify remediation status against Bentley advisory BE-2021-0008.
- Document any compensating controls for users who cannot update 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-2021-46611 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-2021-0008CVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-22-198/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.