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Severity by source

Vendor (microsoft) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 14, 2026 - 18:09 vuln.today
CVE Published
Jul 14, 2026 - 17:04 nvd
HIGH 7.5

DescriptionCVE.org

Loop with unreachable exit condition ('infinite loop') in Windows Active Directory allows an unauthorized attacker to deny service over a network.

AnalysisAI

Denial of service in Windows Active Directory (spanning Windows 10, Windows 11, and Windows Server 2012 through 2025) lets a remote, unauthenticated attacker send crafted network traffic that drives an AD service into an infinite loop, exhausting CPU and rendering domain services unavailable. Because the CVSS vector is AV:N/AC:L/PR:N/UI:N with high availability impact and no confidentiality or integrity loss, this is a pure availability threat against domain controllers. Microsoft has released a patch; there is no public exploit identified at time of analysis and no CISA KEV listing.

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CVE-2026-54119 vulnerability details – vuln.today

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