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CVE-2025-55315

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CVE-2025-55315

Published: Oct 14, 2025

Modified: Feb 22, 2026

PUBLISHED

CVSS v3.1

9.9

CRITICAL

Description

Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network.

VendorProductVersions

Microsoft

ASP.NET Core 2.3

affected
2.3 - < 2.3.6

Microsoft

ASP.NET Core 8.0

affected
8.0 - < 8.0.21

Microsoft

ASP.NET Core 9.0

affected
9.0 - < 9.0.10

Microsoft

Microsoft Visual Studio 2022 version 17.10

affected
17.10.0 - < 17.10.20

Microsoft

Microsoft Visual Studio 2022 version 17.12

affected
17.12.0 - < 17.12.13

Microsoft

Microsoft Visual Studio 2022 version 17.14

affected
17.14.0 - < 17.14.17

Weaknesses (CWE)

CWE-444

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:C

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

References

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