EUVD-2026-73021
GHSA-8f3c-4x82-p83w
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local low-privileged access sufficient; no interaction needed; full triad impact after successful privilege escalation to SYSTEM.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Incorrect type conversion or cast in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Search Component exposes virtually the entire Windows ecosystem - from legacy Server 2012 to Windows 11 26H1 - to full system compromise by any low-privileged local user. The flaw stems from an incorrect type conversion or cast (CWE-704) within the Search Component, allowing an attacker with a standard user session to escalate to SYSTEM-level privileges without user interaction. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an existing low-privileged local user session on the target Windows system - CVSS PR:L confirms at minimum a standard (non-administrator) authenticated account is needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (7.8 High) is internally consistent with the description: local access with low privileges is sufficient, no user interaction is required, and the impact is total across confidentiality, integrity, and availability post-escalation. … 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 Microsoft's security update corresponding to the affected Windows version - specific patched build numbers are listed in the EUVD data and the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69585. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit your Windows environment to identify all systems running Server 2012, Server 2016, Server 2019, Server 2022, Windows 10, and Windows 11, and classify them by criticality (critical infrastructure, domain controllers, sensitive workstations, general endpoints). …
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Same weakness CWE-704 – Incorrect Type Conversion or Cast
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External POC / Exploit Code
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