CVE-2021-34880
Description
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 3DS files. Crafted data in a 3DS file can trigger a read 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-14833.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Bentley View 10.15.0.75 has an out-of-bounds read flaw in 3DS file parsing that allows remote code execution via a malicious file or page.
Vulnerability
This vulnerability affects Bentley View version 10.15.0.75 and earlier versions prior to 10.16.02.*. An out-of-bounds read exists in the parsing of 3DS files. When the application opens a crafted 3DS file, it reads past the end of an allocated buffer, leading to memory corruption. The issue is present in the specific code path that handles 3DS file data [1][2].
Exploitation
An attacker must convince a user to open a malicious 3DS file or visit a malicious page that triggers the file parsing. No authentication or special network position is required, but user interaction is necessary. The crafted data in the 3DS file triggers the out-of-bounds read during parsing, which can be leveraged to achieve code execution [1].
Impact
Successful exploitation allows an attacker to execute arbitrary code in the context of the current process. This leads to full compromise of confidentiality, integrity, and availability (CIA) of the local system, with a CVSS v3.1 score of 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) [1][2].
Mitigation
Bentley has addressed this vulnerability in version 10.16.02.* and later of Bentley View. Users should update to the latest version. As a workaround, only open 3DS files from trusted sources. This vulnerability is not known to be listed on CISA KEV [2].
AI Insight generated on May 27, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Range: = 10.15.0.75
- Bentley/Viewv5Range: 10.15.0.75
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- www.bentley.com/en/common-vulnerability-exposure/BE-2021-0004mitrex_refsource_MISC
- www.zerodayinitiative.com/advisories/ZDI-21-1469/mitrex_refsource_MISC
News mentions
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