All Advisories / BE-2022-0019


BE-2022-0019: FBX File Parsing Out-of-bounds Read Vulnerabilities and Head Overflow in MicroStation and MicroStation-based applications

Bentley ID: BE-2022-0019
CVE ID: CVE-2022-42900
Severity: 7.8
Publication date: 2022-10-12
Revision date: 2022-10-12

MicroStation and MicroStation-based applications may be affected by out-of-bounds read vulnerabilities when opening maliciously crafted FBX files. Exploiting these vulnerabilities could lead to information disclosure and code execution.

Using an affected version of MicroStation or MicroStation-based application to open a FBX file containing maliciously crafted data can force an out-of-bounds read or force execution of arbitrary code. Exploitation of these vulnerabilities within the parsing of FBX files could enable an attacker to read information or execute code in the context of the current process.

Affected Versions

Applications Affected Versions Mitigated Versions
MicroStation 10.17.0.* and prior versions* and more recent
Bentley View 10.17.0.* and prior versions and more recent


Recommended Mitigations
Bentley recommends updating to the latest versions of MicroStation and MicroStation-based applications. As a general best practice, it is also recommended to only open FBX files coming from trusted sources.

Thanks to Michael DePlante (@izobashi) of Trend Micro’s Zero Day Initiative

Revision History

Date Description
2022-10-12 First version of this advisory
2022-10-13 Adding CVE number

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