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CVE-2026-69304 Details

Improper handling of highly compressed data (data amplification) in ASP.NET Core allows an unauthorized attacker to deny service over a network.

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69304	[email protected]	PatchVendor Advisory

CWE-ID	CWE Name	Source
CWE-409	Improper Handling of Highly Compressed Data (Data Amplification)	[email protected]

Product	Versions
microsoft asp.net core	>= 8.0.0, < 8.0.28 >= 9.0.0, < 9.0.17 >= 10.0.0, < 10.0.9 > 11.0.0 11.0 rc1
CPE cpe:2.3:a:microsoft:asp.net_core:::::::: cpe:2.3:a:microsoft:asp.net_core:11.0:rc1:::::: Remediation No remediation found in references.
microsoft visual studio 2022	>= 17.14.0, < 17.14.40
CPE cpe:2.3:a:microsoft:visual_studio_2022:::::::: Remediation No remediation found in references.
microsoft visual studio 2026	>= 18.9.0, < 18.9.3
CPE cpe:2.3:a:microsoft:visual_studio_2026:::::::: Remediation No remediation found in references.
microsoft .net	>= 8.0.0, < 8.0.31 >= 9.0.0, < 9.0.20 >= 10.0.0, < 10.0.12
CPE cpe:2.3:a:microsoft:.net:::::::: Remediation No remediation found in references.
microsoft windows	All versions
CPE cpe:2.3:o:microsoft:windows:-:::::::* Remediation No remediation found in references.

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