Description
Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.
Published: 2026-04-14
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Apply Patch
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-w3x6-4m5h-cxqf Microsoft Security Advisory CVE-2026-26171 – .NET Denial of Service Vulnerability
History

Thu, 07 May 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft windows
CPEs cpe:2.3:a:microsoft:powershell:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft windows

Wed, 22 Apr 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft powershell
CPEs cpe:2.3:a:microsoft:powershell:*:-:*:*:*:*:*:*
Vendors & Products Microsoft powershell

Wed, 15 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-776
References
Metrics threat_severity

None

threat_severity

Important


Tue, 14 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 14 Apr 2026 17:30:00 +0000

Type Values Removed Values Added
Description Uncontrolled resource consumption in .NET allows an unauthorized attacker to deny service over a network.
Title .NET Denial of Service Vulnerability
First Time appeared Microsoft
Microsoft .net
Weaknesses CWE-400
CWE-611
CPEs cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net
References
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-12T17:39:36.254Z

Reserved: 2026-02-11T18:33:57.776Z

Link: CVE-2026-26171

cve-icon Vulnrichment

Updated: 2026-04-14T18:53:33.356Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-14T18:16:51.577

Modified: 2026-05-07T19:42:58.813

Link: CVE-2026-26171

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-14T18:39:18Z

Links: CVE-2026-26171 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T15:15:06Z

Weaknesses