EUVD-2026-72981
GHSA-h6xc-x3gr-95h3
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Network-reachable WMI interface justifies AV:N; UAF race condition requires AC:H; low-privilege account needed (PR:L); user interaction confirmed (UI:R); full C/I/A impact plausible from SYSTEM-level UAF exploitation.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
3DescriptionCVE.org
Use after free in Windows Management Instrumentation allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Use-after-free in Windows Management Instrumentation (WMI) enables an authenticated low-privilege attacker operating over a network to escalate privileges on affected systems, with full confidentiality, integrity, and availability impact when successfully exploited. The CVSS vector (AC:H/UI:R) reflects meaningful exploitation complexity - a specific race condition must be won and some form of user interaction is required, constraining opportunistic mass exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires: (1) a valid low-privilege Windows account (local or domain) capable of making WMI requests to the target - anonymous or unauthenticated access is not sufficient; (2) network reachability to the target's WMI/RPC interface (TCP 135 plus dynamic RPC ports); (3) high attack complexity - a race condition or controlled heap state must be achieved, meaning exploitation is not deterministic and requires multiple attempts or precise timing; (4) user interaction at the target (UI:R) - the exact nature of the required interaction is not specified in available data but likely involves a WMI consumer or provider operation being triggered by a local user or scheduled process. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.1 score reflects a genuine but complexity-gated risk. … 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 version as detailed in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69451. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all affected Windows systems (Server 2012 R2, 2016, 2019, 2022, 2025, and Windows 10/11 all versions), with special attention to systems where low-privilege user accounts exist and user-interactive workloads run. …
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Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
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External POC / Exploit Code
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