CVE-2021-34871
Last modified
CVE-2021-34871 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 2.00% chance of exploitation in the next 30 days.
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 BMP 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-14695.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bentley | Bentley View | < 10.16.02 |
| Bentley | Microstation | < 10.16.02 |
References
- https://www.zerodayinitiative.com/advisories/ZDI-21-1459/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-1459/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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