Security readout for executives and security teams
Plain-English summary
CVE-2021-46653 is a remote code execution issue in Bentley View 10.15.0.75. An attacker would need a user to open a malicious file or visit a malicious page. If successful, attacker code runs inside the Bentley View process, creating risk to workstation data and integrity.
Executive priority
Treat as a high-priority workstation risk for teams using Bentley View. The attack needs user interaction, so urgency is below internet-facing critical flaws, but successful exploitation could compromise engineering endpoints and data.
Technical view
The flaw is in BMP image parsing and is classified as CWE-122 heap-based buffer overflow. The issue is improper validation of user-supplied length before copying data into a heap buffer. CVSS 3.0 is 7.8 with user interaction required and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to environments running Bentley View 10.15.0.75 where users can open or preview untrusted BMP content or browse attacker-controlled content that reaches Bentley View parsing.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires user interaction, but phishing, shared project files, or malicious web content could be plausible delivery paths.
Researcher notes
Analysis is constrained to the provided bundle. It identifies Bentley View 10.15.0.75, BMP parsing, heap-based overflow, and ZDI-CAN-15539/ZDI-22-240. No exploit-in-the-wild evidence or patch version is included in the bundle.
Mitigation direction
- Inventory endpoints for Bentley View 10.15.0.75.
- Check Bentley advisory BE-2021-0002 for fixed versions or official mitigations.
- Limit opening of untrusted BMP files in Bentley View workflows.
- Use endpoint controls to restrict suspicious file delivery paths.
- Prioritize update or removal where Bentley View is unnecessary.
Validation and detection
- Confirm installed Bentley View versions on engineering workstations.
- Review exposure to externally supplied BMP or project content.
- Check EDR logs for Bentley View crashes or abnormal child processes.
- Verify vendor guidance has been applied to affected systems.
- Document compensating controls where updates are delayed.
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-2021-46653 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-22-240/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.