EUVD-2026-73268
GHSA-hmxr-qc3q-973q
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local-only vector with low-privilege requirement; successful exploitation of the pointer-release flaw yields SYSTEM-level execution, justifying full C:H/I:H/A:H with no scope change.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Release of invalid pointer or reference in Windows Device Association Service allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in the Windows Device Association Service allows a low-privileged authenticated local user to gain SYSTEM-level control across a broad range of Windows 10, Windows 11, and Windows Server releases. The root cause is CWE-763 (Release of Invalid Pointer or Reference) - a memory-safety defect in the service's pointer lifecycle management that, when triggered, enables code execution at elevated privilege. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated account with at minimum standard (low-privilege) user rights on an affected Windows build - confirmed by CVSS PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (score 7.8) accurately reflects a realistic local privilege escalation: low-privilege local access is sufficient, no complexity barrier, and no user interaction is required, meaning a working exploit would be highly reliable once developed. … 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-2026-77500 via Windows Update, Microsoft Update Catalog, or WSUS. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows 10, Windows 11, and Windows Server systems in your environment and verify they are not running unpatched versions; create a prioritized patch list starting with servers and administrator workstations. …
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Same weakness CWE-763 – Release of Invalid Pointer or Reference
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External POC / Exploit Code
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