CVE-2023-36566 Microsoft Common Data Model SDK Denial of Service Vulnerability

Medium 6.5 Published Updated

Attackers can cause a denial of service in applications using the Microsoft Common Data Model SDK across multiple languages.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2023-36566?

CVE-2023-36566 is a medium-severity denial of service vulnerability in Microsoft Common Data Model SDK for C#, published on 10 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Microsoft Common Data Model SDK Denial of Service Vulnerability

Weakness: CWE-20

Which versions are affected by CVE-2023-36566?

7 open source packages ship an affected version, including com.microsoft.commondatamodel:objectmodel, Microsoft.CommonDataModel.ObjectModel and commondatamodel-objectmodel. It affects 1 product.

PackageAffectedFixed in
com.microsoft.commondatamodel:objectmodel MavenAll versions1.7.4
com.microsoft.commondatamodel:objectmodel MavenAll versions1.7.4
Microsoft.CommonDataModel.ObjectModel NuGetAll versions1.7.4
Microsoft.CommonDataModel.ObjectModel NuGetAll versions1.7.4
commondatamodel-objectmodel PyPIAll versions1.7.4
commondatamodel-objectmodel PyPIAll versions1.7.4
1 more packages
commondatamodel-objectmodel PyPIAll versions1.7.4

Products include Microsoft Common Data Model Sdk.

How do I fix CVE-2023-36566?

Upgrade com.microsoft.commondatamodel:objectmodel to 1.7.4 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-36566 being exploited?

There is no known exploitation of CVE-2023-36566 in the wild and no public exploit code.

Sources

Also known as GHSA-vm2m-7hpw-fpmq, PYSEC-2026-1261.

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