CVE-2021-34905 json
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75.
published 2022-01-13 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21552
- cvss
- 7.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14878.
Patch / fix
- bentley bentley_view 10.16.02
- bentley microstation 10.16.02
Exploit prediction
2.19% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Bentley View
Classification
References
-
bentley.com
/en/common-vulnerability-exposure/BE-2021-0009
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-1494/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-34905
- NVD CVE-2021-34905
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