Out-of-bounds Read in Bentley Microstation
CVE-2021-46630
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 proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-15460.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.016 (75.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Bentley Microstation
- Bentley View — versions 10.15.0.75
Weakness classification (CWE)
References
- www.bentley.com/en/common-vulnerability-exposure/BE-2021-0012 (Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-22-217/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-46630?
- CVE-2021-46630 is a medium-severity vulnerability in Bentley Microstation, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2022-02-18.
- How severe is CVE-2021-46630?
- Medium severity. CVSS v3 base score is 5.5 out of 10.