CVE-2026-26171 - Vulnerability Details - OpenCVE

Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Microsoft

.NET 10.0

affected

Version	Status	Constraints
`10.0.0`	affected	< 10.0.6

Microsoft

.NET 8.0

affected

Version	Status	Constraints
`8.0.0`	affected	< 8.0.26

Microsoft

.NET 9.0

affected

Version	Status	Constraints
`9.0.0`	affected	< 9.0.15

No data.

No data.

No data.

Project Subscriptions

Vendors	Products
Microsoft Subscribe	.net Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171

History

Tue, 14 Apr 2026 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 14 Apr 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.
Title		.NET Denial of Service Vulnerability
First Time appeared		Microsoft Microsoft .net
Weaknesses		CWE-400 CWE-611
CPEs		cpe:2.3:a:microsoft:.net::::::::
Vendors & Products		Microsoft Microsoft .net
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26171
Metrics		cvssV3_1 `{'score': 7.5, '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'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-04-14T16:58:37.655Z

Updated: 2026-04-14T18:53:37.106Z

Reserved: 2026-02-11T18:33:57.776Z

Link: CVE-2026-26171

Vulnrichment

Updated: 2026-04-14T18:53:33.356Z

NVD

Status : Received

Published: 2026-04-14T18:16:51.577

Modified: 2026-04-14T18:16:51.577

Link: CVE-2026-26171

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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