Use After Free in Bentley View
CVE-2021-34886
This vulnerability allows remote attackers to disclose sensitive information 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 FBX files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14839.
Vulnerability class: Use-After-Free
EPSS: 0.016 (73.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
Affected products
- Bentley Bentley_view
- Bentley Microstation
- Bentley View — versions 10.15.0.75
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
- zdi-disclosures@trendmicro.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34886?
- CVE-2021-34886 is a low-severity vulnerability in Bentley View, classified under Use After Free. CVSS score: 3.3/10. Published 2022-01-13.
- How severe is CVE-2021-34886?
- Low severity. CVSS v3 base score is 3.3 out of 10.