CVE-2021-34926 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-2021-21573
- cvss
- 7.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 80%
- 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 JT files. Crafted data in a JT file can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14904.
Patch / fix
- bentley bentley_view 10.16.02
- bentley microstation 10.16.02
Exploit prediction
2.00% chance of exploitation in the next 30 days, higher than 80% 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
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
bentley.com
/en/common-vulnerability-exposure/BE-2021-0005
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-1514/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-34926
- NVD CVE-2021-34926
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