CVE-2022-48282: mongodb inc mongodb .net/c# driver Deserialization of Untrusted Data

Vulnerability summary

CVE-2022-48282 is a high (CVSS 7.2) Deserialization of Untrusted Data vulnerability in mongodb inc mongodb .net/c# driver. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.6% of scored vulnerabilities.

Timeline

1. 21-02-2023
   PublishedVulnerability first disclosed.
2. 11-03-2025
   Last modifiedVulnerability information updated.

Description

Under very specific circumstances (see Required configuration section below), a privileged user is able to cause arbitrary code to be executed which may cause further disruption to services. This is specific to applications written in C#. This affects all MongoDB .NET/C# Driver versions prior to and including v2.18.0 Following configuration must be true for the vulnerability to be applicable: * Application must written in C# taking arbitrary data from users and serializing data using _t without any validation AND * Application must be running on a Windows host using the full .NET Framework, not .NET Core AND * Application must have domain model class with a property/field explicitly of type System.Object or a collection of type System.Object (against MongoDB best practice) AND * Malicious attacker must have unrestricted insert access to target database to add a _t discriminator."Following configuration must be true for the vulnerability to be applicable

• CWE-502Deserialization of Untrusted DataThe product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.