EUVD-2026-73565
GHSA-gp4c-q3pj-hpq8
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local kernel driver UAF requiring memory grooming (AC:H), exploitable by any authenticated user (PR:L), with full post-escalation impact on the compromised host.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Windows Bluetooth Port Driver allows an authorized attacker to elevate privileges locally.
AnalysisAI
Use-after-free in the Windows Bluetooth Port Driver enables a local low-privileged attacker to escalate privileges, potentially reaching SYSTEM-level access across a broad range of Windows 10, Windows 11, and Windows Server versions. The vulnerability (CWE-416) requires high attack complexity, consistent with timing-dependent memory corruption exploitation typical of UAF flaws in kernel-mode drivers. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local session with at least low-privilege access (PR:L) - a standard interactive or remote desktop user account is sufficient. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS base score 7.0 with vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H reflects a local privilege escalation requiring an already-authenticated attacker and high exploitation complexity. … 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 via Windows Update or the Microsoft Update Catalog; fixed builds are defined per-version in the EUVD data (e.g., Windows 11 24H2 to 10.0.26100.9445 or later, Windows Server 2025 to 10.0.26100.33438 or later - consult the full per-version table in the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69817). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory Windows endpoints with Bluetooth enabled and determine which systems actively use Bluetooth to prioritize patch deployment. …
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
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External POC / Exploit Code
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