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.net FrameworkApplication · Microsoft

CVE-2026-50648

HIGH · 7.5 CVSS v3.1 Published 2026-07-14
Fix available
A fix is available. Upgrade to 8.0.29 / 9.0.18 or later.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click 5 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Allocation of resources without limits or throttling in .NET Framework allows an unauthorized attacker to deny service over a network.

In the news

Third-party coverage
Trending covered by 1 outlet this week · latest 1mo ago

Surfaced from public web coverage — external links open in a new tab.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is a denial-of-service vulnerability in .NET Framework caused by improper allocation of resources without limits or throttling. An unauthenticated remote attacker can exploit this by sending specially crafted network requests that cause the affected system to exhaust resources, resulting in service unavailability.

MitigationApply the Microsoft security patch for .NET Framework when available. In the interim, implement network-level rate limiting and resource consumption monitoring to mitigate exploitation attempts.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
.net FrameworkApplication
Affected:= 4.8= 4.6.2= 4.7= 4.7.1= 4.7.2= 3.5= 4.8.1
.netApplication
Affected:>= 8.0.0, < 8.0.29>= 9.0.0, < 9.0.18>= 10.0.0, < 10.0.6
Visual Studio 2022Application
Affected:>= 17.12.0, < 17.12.22>= 17.14.0, < 17.14.36
Visual Studio 2026Application
Affected:>= 18.7.0, < 18.7.4

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check installed .NET version
    Run 'dotnet --version' in command prompt or PowerShell to identify the .NET runtime version
    Affected if The version is 8.0.0-8.0.28, 9.0.0-9.0.17, or 10.0.0-10.0.5
  2. Check installed .NET Framework version
    Check registry key 'HKLM\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full' for Release value, or use PowerShell: Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full' | Select-Object Release
    Affected if The Release value corresponds to versions 4.8, 4.6.2, 4.7, 4.7.1, 4.7.2, 3.5, or 4.8.1 (Release values 528040, 394802, 394806, 394807, 394809, 379893, or 533320)
  3. Check Visual Studio 2022 version
    Open Visual Studio, go to Help > About Microsoft Visual Studio, or check 'C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\IDE\devenv.exe' version properties
    Affected if Version is 17.12.0-17.12.21 or 17.14.0-17.14.35
  4. Check Visual Studio 2026 version
    Check version of VS 2026 installation in 'C:\Program Files\Microsoft Visual Studio\2026\' directory or via Help > About
    Affected if Version is 18.7.0-18.7.3
  5. Identify network-exposed .NET applications
    Review IIS bindings, Kestrel configurations, or any service listening on network ports using 'netstat -ano' or checking application host files
    Affected if A .NET application is listening on network ports without rate limiting configured

A user is affected if they have any of the listed .NET, .NET Framework, or Visual Studio versions running network-facing applications without resource throttling controls.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to 8.0.29 / 9.0.18 / 10.0.6 or later
Fixed in 8.0.299.0.1810.0.6
Interim mitigation

Apply the Microsoft security patch for .NET Framework when available. In the interim, implement network-level rate limiting and resource consumption monitoring to mitigate exploitation attempts.

Fix this in .net Framework Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,380
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,808.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-50648 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data