EUVD-2026-22363

| CVE-2026-23666 HIGH
2026-04-14 microsoft
Authentication Bypass
7.5
CVSS 3.1
Temporal: 6.7
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Re-analysis Queued
Apr 15, 2026 - 22:22 vuln.today
cvss_changed
Analysis Generated
Apr 14, 2026 - 19:25 vuln.today

DescriptionNVD

Concurrent execution using shared resource with improper synchronization ('race condition') in .NET Framework allows an unauthorized attacker to deny service over a network.

AnalysisAI

Denial of service in Microsoft .NET Framework 3.5 through 4.8.1 allows unauthenticated remote attackers to crash applications via race condition exploitation over a network. The vulnerability stems from improper synchronization when multiple threads access shared resources concurrently (CWE-755). …

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RemediationAI

Within 24 hours: inventory all systems running .NET Framework 3.5, 4.6.2, 4.7.x, 4.8, or 4.8.1 and prioritize applications facing external network exposure. Within 7 days: apply vendor-released patches to all identified systems, beginning with internet-facing and production applications. …

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EUVD-2026-22363 vulnerability details – vuln.today
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