CVE-2026-47303 - Vulnerability Details - OpenCVE

Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

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 no

Technical Impact total

Vendors	Products
Microsoft	.net Visual Studio 2022 Visual Studio 2026

No data.

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47303

History

Tue, 14 Jul 2026 20:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 14 Jul 2026 19:00:00 +0000

Type	Values Removed	Values Added
Description		Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
Title		ASP.NET Core Elevation of Privilege Vulnerability
First Time appeared		Microsoft Microsoft .net Microsoft visual Studio 2022 Microsoft visual Studio 2026
Weaknesses		CWE-302 CWE-863 CWE-90
CPEs		cpe:2.3:a:microsoft:.net:::::::: cpe:2.3:a:microsoft:visual_studio_2022:::::::: cpe:2.3:a:microsoft:visual_studio_2026::::::::
Vendors & Products		Microsoft Microsoft .net Microsoft visual Studio 2022 Microsoft visual Studio 2026
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47303
Metrics		cvssV3_1 `{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-07-14T18:45:33.438Z

Updated: 2026-07-15T03:57:39.744Z

Reserved: 2026-05-18T23:53:33.898Z

Link: CVE-2026-47303

Vulnrichment

Updated: 2026-07-14T19:11:27.008Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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