CVE-2026-56170 - Vulnerability Details - OpenCVE

Allocation of resources without limits or throttling in ASP.NET Core 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	< 5104034

Microsoft

.NET 8.0

affected

Version	Status	Constraints
`8.0.0`	affected	< 8.0.29

Microsoft

.NET 9.0

affected

Version	Status	Constraints
`9.0.0`	affected	< 9.0.18

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-2026-56170

History

Tue, 14 Jul 2026 18:30:00 +0000

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

Tue, 14 Jul 2026 17:15:00 +0000

Type	Values Removed	Values Added
Description		Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Title		ASP.NET Core Denial of Service Vulnerability
First Time appeared		Microsoft Microsoft .net
Weaknesses		CWE-770
CPEs		cpe:2.3:a:microsoft:.net::::::::
Vendors & Products		Microsoft Microsoft .net
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56170
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: 2026-07-14T17:05:13.486Z

Updated: 2026-07-14T18:53:02.714Z

Reserved: 2026-06-19T13:53:31.989Z

Link: CVE-2026-56170

Vulnrichment

Updated: 2026-07-14T17:49:28.275Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-770

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