EUVD-2026-73763
GHSA-5vfj-475f-f8hq
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local UAF race condition requires a low-privilege authenticated session (PR:L) and precise timing (AC:H); success yields unrestricted SYSTEM access (C:H/I:H/A:H) with no scope change.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
Use after free in Windows Modern Device Management (MDM) allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Modern Device Management (MDM) allows an authenticated low-privilege attacker to achieve full SYSTEM-level access via a use-after-free (CWE-416) memory corruption condition. The flaw spans an exceptionally broad surface - from Windows 10 1809 through Windows 11 26H1 and Windows Server 2019 through 2025 - making it relevant to virtually every supported enterprise Windows deployment using MDM enrollment. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local, authenticated session with at minimum standard user (low) privileges on the target system - confirmed by PR:L in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.0 score with vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H accurately reflects the local, authenticated nature of this privilege escalation: exploitation requires an existing low-privilege session and success depends on winning a race or achieving a precise heap state (AC:H), which partially offsets the severity relative to trivial exploits. … 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 for CVE-2026-73022 via Windows Update, Windows Server Update Services, or the Microsoft Update Catalog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct an enterprise-wide inventory of MDM-enrolled systems across all supported Windows versions to quantify exposure and identify business-critical assets. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
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External POC / Exploit Code
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