EUVD-2026-44096
GHSA-m5gq-92jx-fxcv
Severity by source
AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Adjacent vector and high privileges confirmed by description's 'authorized attacker over adjacent network'; availability-only impact with no scope change.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
Buffer over-read in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
AnalysisAI
Denial of service in Windows Hyper-V allows an authorized, adjacent-network attacker to crash or disrupt the hypervisor by triggering a buffer over-read (CWE-126). Affected platforms span Windows 10, Windows 11, and Windows Server 2012 through 2025, covering a broad slice of Microsoft's enterprise footprint. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two concurrent prerequisites grounded in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 4.5 (Medium) accurately reflects the constrained threat model. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has already obtained high-privilege credentials on the target network (via lateral movement or insider access) sends a specially crafted network message to the Hyper-V subsystem of an adjacent Windows host. The malformed input triggers a buffer over-read in Hyper-V's network handling code, causing an unhandled memory access fault that crashes or hangs the hypervisor, taking all hosted virtual machines offline until the host is restarted. |
| Remediation | Apply the patch released by Microsoft and documented in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50485. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-126 – Buffer Over-read
View allSame technique Buffer Overflow
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External POC / Exploit Code
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