Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

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Fixes

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History

Wed, 15 Apr 2026 22:00:00 +0000

Type Values Removed Values Added
Description Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network. Improper input validation in .NET Framework allows an unauthorized attacker to deny service over a network.

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

Type Values Removed Values Added
First Time appeared Microsoft .net Framework
Vendors & Products Microsoft .net Framework

Wed, 15 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


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

Type Values Removed Values Added
Weaknesses CWE-366
References
Metrics threat_severity

None

threat_severity

Important


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

Type Values Removed Values Added
Description Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.
Title .NET Framework Denial of Service Vulnerability
First Time appeared Microsoft
Microsoft .net
Weaknesses CWE-755
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:P/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-04-16T14:19:31.287Z

Reserved: 2026-01-14T16:59:33.464Z

Link: CVE-2026-23666

cve-icon Vulnrichment

Updated: 2026-04-15T13:41:03.726Z

cve-icon NVD

Status : Received

Published: 2026-04-14T18:16:44.507

Modified: 2026-04-15T22:16:52.860

Link: CVE-2026-23666

cve-icon Redhat

Severity : Important

Publid Date: 2026-04-14T16:57:53Z

Links: CVE-2026-23666 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-16T02:45:06Z

Weaknesses