EUVD-2026-44112
GHSA-66hc-h9hh-629w
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description states network information disclosure with no auth (AV:N/PR:N/UI:N/AC:L); an OOB read leaking memory maps to C:H with no integrity or availability impact, diverging from the input's A:H.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
Out-of-bounds read in Windows Network Policy Server SNMP allows an unauthorized attacker to disclose information over a network.
AnalysisAI
Information disclosure in the Windows Network Policy Server (NPS) SNMP handling allows a remote, unauthenticated attacker to read out-of-bounds memory over the network and disclose potentially sensitive data. The flaw affects a broad range of Windows Server (2012 through 2025) and Windows client builds where the NPS role/SNMP component is present. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to a Windows host running the Network Policy Server role with the SNMP handling component active/exposed - the affected feature is NPS SNMP processing specifically, so hosts without the NPS role or without SNMP exposed are not reachable via this path. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The provided CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) scores 7.5 and describes a network-reachable, low-complexity, unauthenticated flaw - favorable conditions for an attacker. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A remote attacker with network access to a Windows Server running the Network Policy Server role sends a crafted SNMP request that triggers the out-of-bounds read, causing the service to return or process memory beyond the intended buffer. Because the CVSS vector is AV:N/AC:L/PR:N/UI:N, no authentication or user interaction is required, making the attack straightforward against any exposed NPS/SNMP endpoint. … |
| Remediation | Apply the Microsoft security update for CVE-2026-50496 - patch available per vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50496, which lists the specific KB/build numbers for each affected Windows 10/11 and Windows Server 2012-2025 SKU; no single fix version string was provided in the input, so pull the exact build from the MSRC update guide for your platform. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all systems running Windows Server 2012-2025 with the Network Policy Server role and SNMP component enabled. …
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External POC / Exploit Code
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