Security readout for executives and security teams
Plain-English summary
A malicious BMP image can crash or take over Bentley MicroStation CONNECT 10.16.0.80 when a user opens a crafted file or visits a malicious page. Successful exploitation could run code with the same privileges as the MicroStation user, putting design workstations and project files at risk.
Executive priority
Treat this as a high-priority workstation risk for engineering or design teams using the affected MicroStation version. It is not described as wormable or actively exploited in the provided sources, but a targeted file lure could lead to code execution and project environment compromise.
Technical view
The flaw is a heap-based buffer overflow in BMP image parsing. MicroStation CONNECT 10.16.0.80 fails to validate user-controlled length data before copying into a heap buffer, enabling arbitrary code execution in the current process. It is tracked as CWE-122 and ZDI-CAN-15399/ZDI-22-192.
Likely exposure
Exposure is most likely on workstations running Bentley MicroStation CONNECT 10.16.0.80, especially where users handle externally supplied design assets, images, or links. The provided sources identify only this version, so broader product or version impact should not be assumed without Bentley guidance.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not listed as KEV. Exploitation requires user interaction: the target must open a malicious file or visit a malicious page. The impact is serious because code execution occurs in the MicroStation process context.
Researcher notes
Evidence supports a user-interaction RCE via BMP parsing, not a network-reachable service issue. The CVSS vector is AV:L/UI:R with high confidentiality, integrity, and availability impact. No exploit status, patch version, or detailed vendor mitigation is present in the supplied bundle.
Mitigation direction
- Review Bentley advisory BE-2021-0002 for official remediation guidance.
- Prioritize removing or upgrading MicroStation CONNECT 10.16.0.80 where present.
- Restrict opening untrusted BMP images and externally supplied files in MicroStation.
- Use existing email, web, and file controls to reduce malicious file delivery.
- Apply least privilege to MicroStation user accounts where operationally feasible.
Validation and detection
- Inventory endpoints for Bentley MicroStation CONNECT 10.16.0.80.
- Confirm whether Bentley BE-2021-0002 guidance has been applied.
- Review workflows where users open external BMP or project-related files.
- Check EDR and crash telemetry for unusual MicroStation process behavior.
- Document compensating controls if immediate remediation is unavailable.
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-122: 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-2021-46605 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
- 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
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:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.8HighVector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0002CVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-22-192/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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.