# CVE-2024-21909: Denial of service in CBOR library

Source: https://junglewise.ai/threats/cve-2024-21909-denial-of-service-in-cbor-library  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-01-21  
License: CC BY 4.0 with a link back

CVE-2024-21909 · Severity: info · Published 2022-01-21

Denial of service in CBOR library

Technologies: [PeterO.Cbor (NuGet)](https://junglewise.ai/threats/technologies/petero-cbor). Vendors: [NuGet](https://junglewise.ai/threats/vendors/nuget).

## Quick answers

**Is CVE-2024-21909 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2024-21909 being exploited in the wild.

**How severe is CVE-2024-21909?** Informational severity, published 21 January 2022.

**Which products and versions are affected?** PeterO.Cbor (NuGet) ECOSYSTEM:introduced=4.0.0,fixed=4.5.1.

**Is there a fix for CVE-2024-21909?** Yes. PeterO.Cbor (NuGet): upgrade to 4.5.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2024-21909?** Check whether you run PeterO.Cbor (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- PeterO.Cbor (NuGet): upgrade to 4.5.1 or later

  ```sh
  dotnet add package PeterO.Cbor --version 4.5.1
  ```


## Affected products

- PeterO.Cbor (NuGet) ECOSYSTEM:introduced=4.0.0,fixed=4.5.1

## Identifiers

- CVE-2024-21909
- GHSA-6r92-cgxc-r5fg

## Related threats

- [Duplicate Advisory: Denial of service in CBOR library](https://junglewise.ai/threats/duplicate-advisory-denial-of-service-in-cbor-library-1433b553)
- [High severity vulnerability that affects PeterO.Cbor](https://junglewise.ai/threats/high-severity-vulnerability-that-affects-petero-cbor-92ab0883)