EUVD-2026-73229
GHSA-543x-j8x7-cv8p
Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
Network-reachable WMI service leaks uninitialized memory; PR:L and UI:R appropriately constrain automated exploitation; C:H reflects potential exposure of sensitive residual heap contents with no write or availability impact.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use of uninitialized resource in Windows Management Instrumentation allows an authorized attacker to disclose information over a network.
AnalysisAI
Windows Management Instrumentation (WMI) across a wide range of Windows 10, 11, and Server editions returns uninitialized memory to authenticated remote callers (CWE-908), potentially exposing sensitive heap or stack contents from prior operations. The CVSS 3.1 vector (PR:L/UI:R) confirms exploitation requires a valid low-privileged Windows account plus some form of user interaction, which substantially limits automated or unauthenticated abuse. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires possession of a valid low-privileged Windows account with permission to connect to the target system's WMI service over the network (PR:L, AV:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 5.7 (Medium) is calibrated appropriately given the constraints: AV:N/AC:L establishes straightforward network reachability with no special preconditions, but PR:L (requires an authenticated Windows account) and UI:R (requires user interaction of unspecified nature) significantly reduce exploitability. … 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 security update from Microsoft via Windows Update, WSUS, or the Microsoft Update Catalog, targeting the minimum fixed builds listed above (e.g., Windows 11 23H2 → 10.0.22631.7582, Windows Server 2025 → 10.0.26100.33438, Windows Server 2019 → 10.0.17763.9245). … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-908 – Use of Uninitialized Resource
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External POC / Exploit Code
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