CVE-2025-27473 - Vulnerability Details - OpenCVE

Uncontrolled resource consumption in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

No data.

No data.

No data.

References

Link	Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27473

History

Tue, 08 Apr 2025 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 08 Apr 2025 17:30:00 +0000

Type	Values Removed	Values Added
Description		Uncontrolled resource consumption in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
Title		HTTP.sys Denial of Service Vulnerability
Weaknesses		CWE-400
References		https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27473
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C'}`

MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2025-04-08T17:23:16.020Z

Updated: 2025-04-16T00:41:15.141Z

Reserved: 2025-02-26T14:42:05.976Z

Link: CVE-2025-27473

Vulnrichment

Updated: 2025-04-08T20:04:56.688Z

NVD

Status : Awaiting Analysis

Published: 2025-04-08T18:15:57.290

Modified: 2025-04-09T20:03:01.577

Link: CVE-2025-27473

Redhat

No data.

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