Double Free in Bentley Microstation
CVE-2021-46621
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. 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 handling of JT files. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-15415.
Vulnerability class: Double Free
EPSS: 0.019 (78.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Bentley Microstation
- Bentley Microstation Connect — versions 10.16.0.80
- Bentley Microstation_connect
- Bentley View
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_refsource_MISC, Vendor Advisory)
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-46621?
- CVE-2021-46621 is a high-severity vulnerability in Bentley Microstation, classified under Double Free. CVSS score: 7.8/10. Published 2022-02-18.
- How severe is CVE-2021-46621?
- High severity. CVSS v3 base score is 7.8 out of 10.