EUVD-2026-56300
GHSA-m9xg-3vpp-7xh8
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-triggered, unauthenticated resource exhaustion with no credential or interaction requirement; impact is availability-only with no scope change.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Allocation of resources without limits or throttling in Windows Kernel allows an unauthorized attacker to deny service over a network.
AnalysisAI
Unauthenticated network-based denial of service in the Windows Kernel results from unconstrained resource allocation (CWE-770), where the kernel fails to impose limits or throttling on network-triggered resource consumption. Affecting Windows 10, Windows 11, and Windows Server editions spanning 2012 through 2025, a remote attacker with no credentials or user interaction can exhaust system resources and render the host unavailable. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No authentication is required - the CVSS vector PR:N confirms unauthenticated exploitation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 7.5 (High) is driven entirely by availability impact (A:H) against a network-accessible, unauthenticated, low-complexity attack surface. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patches for each affected Windows version immediately, prioritizing internet-exposed and server-class systems. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: obtain the Windows patch from Microsoft and test it in a controlled lab environment; simultaneously audit the enterprise to identify all affected Windows 10, Windows 11, and Server 2012-2025 instances. …
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External POC / Exploit Code
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