Denial of Service Vulnerability in System.Formats.Nrbf Package

System.Formats.Nrbf Updated 02 Oct 2025

Summary

12/11/2024

Disclosed on

HIGH

Severity

Yes i

Fix available

High

Severity

7.5

CVSS Score

GHSA-wmm6-pgp8-29hg: Duplicate Advisory: .NET and Visual Studio Denial of Service Vulnerability. Affects System.Formats.Nrbf versions < 9.0.0. Fixed in 9.0.0. How to fix ↓

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Background

System.Formats.Nrbf is a NuGet package that provides functionality for handling NRBF (Named Binary Format) serialization in .NET applications. It is widely used for efficient data serialization and deserialization, enabling developers to work with binary data in a structured manner. However, this package has been identified to have a denial of service vulnerability that can potentially disrupt application performance and availability.

Vulnerability Detail

The vulnerability arises from improper handling of certain inputs, which can lead to a denial of service condition. Attackers may exploit this flaw by sending specially crafted data to the application, causing it to become unresponsive or crash. The vulnerability is classified under CWE-606, indicating that it involves a potential denial of service due to improper input validation. The implications of this vulnerability are significant, as it can affect the stability and reliability of applications relying on the affected package.

How To Fix

Latest published version: 10.0.13 as of 22 Oct 2026

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

9.0.0

This is the first release that contains the fix.

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Workaround

As a temporary measure, you can implement input validation to filter out potentially harmful data before it reaches the serialization process. This can help mitigate the risk of denial of service attacks while you work on updating the package.

Conclusion

The denial of service vulnerability in the System.Formats.Nrbf package poses a significant risk to applications utilizing this package. It is crucial to update to the patched version 9.0.0 to ensure application stability and security. Additionally, implementing input validation can serve as a temporary workaround while preparing for the update.

See every vulnerability recorded for System.Formats.Nrbf →