EUVD-2026-73484
GHSA-8qcw-vj7r-55g8
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Local-only attack surface with a race-condition complexity requirement; low-privilege local session required; full post-exploitation impact with no scope change.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
5DescriptionCVE.org
Use after free in Windows Bluetooth Service allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in Windows Bluetooth Service via a use-after-free (CWE-416) allows a low-privileged local user to achieve full system compromise across a broad range of Windows 10, Windows 11, and Windows Server releases. The CVSS vector (AV:L/AC:H/PR:L) indicates the flaw requires local access and elevated attack complexity - consistent with a race condition in Bluetooth service memory management - but yields full confidentiality, integrity, and availability impact upon successful exploitation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated user account (PR:L) on the target Windows system - the description uses 'authorized attacker,' consistent with any standard domain or local user credential. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 7.0 reflects a meaningful local escalation risk: while AV:L and AC:H significantly limit the attack surface compared to network-exploitable flaws, the C:H/I:H/A:H triad means successful exploitation yields full system control. … 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-released cumulative updates that bring affected builds to or above the fixed build numbers listed in the EUVD affected-version data: Windows 10 1809/21H2/22H2 to 10.0.17763.9245/10.0.19044.7725/10.0.19045.7725 respectively; Windows 11 23H2 to 10.0.22631.7582; Windows 11 24H2 and Server 2025 to 10.0.26100.9445 (or 10.0.26100.33438 for the Server 2025 specific branch); Windows 11 25H2 to 10.0.26200.9445; Windows 11 26H1 to 10.0.28000.2954; Windows Server 2022 to 10.0.20348.5622. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and inventory all Windows 10, Windows 11, and Windows Server systems in your environment to establish patch scope. …
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Same weakness CWE-416 – Use After Free
View allSame technique Privilege Escalation
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External POC / Exploit Code
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