EUVD-2026-73090
GHSA-8x9h-9vpf-7mc4
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NFS service is network-reachable with no authentication required; only confidentiality is impacted with no write or availability effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Exposure of sensitive system information to an unauthorized control sphere in Windows Services for NFS ONCRPC XDR Driver allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Unauthenticated network information disclosure in the Windows Services for NFS ONCRPC XDR Driver allows a remote attacker to obtain sensitive system information without any credentials or user interaction. The vulnerability, classified as CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere), affects a broad range of Windows versions from Server 2012 through Server 2025 and Windows 10/11 across multiple feature releases. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target Windows system has the 'Services for NFS' role or feature explicitly installed and running - this is not enabled by default on any affected Windows edition. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N places this squarely in the high-severity, unauthenticated, network-reachable category with high confidentiality impact - even a mid-sized municipal IT team in inowroclaw managing a Windows-based file-sharing infrastructure should treat this as an urgent patching priority if NFS is in use. … 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 Microsoft security update corresponding to your Windows edition, which brings each affected OS to the patched build number listed in the affected-versions data (e.g., Windows Server 2025 to 10.0.26100.33438 or later, Windows Server 2019 to 10.0.17763.9245 or later). … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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