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CVE-2026-47300 Details

Incorrect implementation of authentication algorithm in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47300	[email protected]	PatchVendor Advisory

CWE-ID	CWE Name	Source
CWE-303	Incorrect Implementation of Authentication Algorithm	[email protected]

Product	Versions
microsoft .net	>= 8.0.0, < 8.0.29 >= 9.0.0, < 9.0.18 >= 10.0.0, < 10.0.6
CPE cpe:2.3:a:microsoft:.net:::::::: Remediation No remediation found in references.
apple macos	All versions
CPE cpe:2.3:o:apple:macos:-:::::::* Remediation No remediation found in references.
linux linux kernel	All versions
CPE cpe:2.3:o:linux:linux_kernel:-:::::::* Remediation No remediation found in references.
microsoft windows	All versions
CPE cpe:2.3:o:microsoft:windows:-:::::::* Remediation No remediation found in references.
microsoft visual studio 2022	>= 17.12.0, < 17.12.22 >= 17.14.0, < 17.14.36
CPE cpe:2.3:a:microsoft:visual_studio_2022:::::::: Remediation No remediation found in references.
microsoft visual studio 2026	>= 18.7.0, < 18.7.4
CPE cpe:2.3:a:microsoft:visual_studio_2026:::::::: Remediation No remediation found in references.

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