Security readout for executives and security teams
Plain-English summary
CVE-2021-46631 affects Bentley View 10.15.0.75. A malicious TIF image or file-handling path can trigger memory misuse and allow code execution when a user opens attacker-controlled content. Business urgency is high where Bentley View is used with externally supplied engineering or design files.
Executive priority
Treat this as a high-priority workstation exposure if Bentley View is used in engineering workflows. It is not described as wormable, but a single malicious file could compromise a user workstation and threaten project data.
Technical view
The flaw is in TIF image parsing in Bentley View 10.15.0.75. It is described as improper initialization of memory before access, mapped to CWE-457. Successful exploitation can execute code in the current process context. The CVSS 3.0 score is 7.8 with user interaction required.
Likely exposure
Exposure is limited to environments running Bentley View 10.15.0.75. Risk is greatest for users who receive drawings, images, or project materials from contractors, vendors, clients, or public sources and open them locally.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires user interaction, such as visiting a malicious page or opening a malicious file. No exploit steps or weaponization details are provided in the cited sources.
Researcher notes
The record identifies ZDI-CAN-15461 and ZDI-22-218. Evidence in the bundle supports affected version, bug class, CVSS, and user-interaction requirement. Patch details are not present in the prompt, so remediation should be anchored to Bentley guidance.
Mitigation direction
- Identify and prioritize Bentley View 10.15.0.75 installations.
- Review Bentley advisory BE-2021-0015 for vendor-approved updates or mitigations.
- Restrict opening untrusted TIF images and unsolicited project files.
- Use least-privileged user accounts for workstations handling external files.
- Increase scrutiny for externally supplied engineering and design files.
Validation and detection
- Confirm installed Bentley View versions across endpoints and software inventory.
- Check whether Bentley View 10.15.0.75 remains present on active systems.
- Review endpoint alerts for suspicious child processes from Bentley View.
- Verify users handling external files have updated or mitigated installations.
- Confirm security controls inspect or quarantine risky inbound file attachments.
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-457: 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-2021-46631 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-2021-0015CVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-22-218/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.
Use of Uninitialized Variable
Use of Uninitialized Variable represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.