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.
Published: 2025-10-14
Score: 9.9 Critical
EPSS: 1.4% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-5rrx-jjjq-q2r5 Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability
Ubuntu USN Ubuntu USN USN-7822-1 .NET vulnerabilities
History

Tue, 28 Oct 2025 21:30:00 +0000


Tue, 28 Oct 2025 13:15:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 23 Oct 2025 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft visual Studio
Vendors & Products Microsoft visual Studio

Thu, 16 Oct 2025 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft
Microsoft asp.net Core
Microsoft visual Studio 2022
CPEs cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft asp.net Core
Microsoft visual Studio 2022

Thu, 16 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat
Redhat enterprise Linux
CPEs cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:enterprise_linux:10.0
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics threat_severity

None

threat_severity

Important


Wed, 15 Oct 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 14 Oct 2025 17:15:00 +0000

Type Values Removed Values Added
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.
Title ASP.NET Security Feature Bypass Vulnerability
Weaknesses CWE-444
References
Metrics cvssV3_1

{'score': 9.9, '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'}


Subscriptions

Microsoft Asp.net Core Visual Studio Visual Studio 2022
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-02-22T17:24:12.183Z

Reserved: 2025-08-12T20:19:59.422Z

Link: CVE-2025-55315

cve-icon Vulnrichment

Updated: 2025-10-28T20:12:31.181Z

cve-icon NVD

Status : Modified

Published: 2025-10-14T17:15:44.960

Modified: 2025-10-28T21:15:37.933

Link: CVE-2025-55315

cve-icon Redhat

Severity : Important

Publid Date: 2025-10-15T12:58:31Z

Links: CVE-2025-55315 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-23T13:12:31Z

Weaknesses