EUVD-2026-73198
GHSA-m6gp-m6f4-gcgj
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Local-only kernel driver OOB read requires low-privilege auth and specific trigger conditions (AC:H); impacts only confidentiality with no write capability or scope change.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
4DescriptionCVE.org
Out-of-bounds read in Windows Bluetooth Port Driver allows an authorized attacker to disclose information locally.
AnalysisAI
Out-of-bounds read in the Windows Bluetooth Port Driver (bthport.sys) allows a local, low-privileged authenticated attacker to disclose kernel memory contents under high-complexity conditions. Affected platforms span Windows 10 (21H2/22H2), Windows 11 (23H2/24H2/25H2/26H1), Windows Server 2022, and Windows Server 2025 across specific build thresholds confirmed by EUVD version data. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated local account with at minimum standard user (low) privileges on the target system (PR:L confirmed by CVSS vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 4.7 (Medium) with vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N reflects a substantially constrained threat: exploitation is local-only with no network attack path, requires low-privileged authentication, and imposes high attack complexity - likely a specific race condition or Bluetooth device state requirement. … 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 the applicable Windows edition via Windows Update or the Microsoft Update Catalog: Windows Server 2022 to build 10.0.20348.5622 or later; Windows 10 21H2 to 10.0.19044.7725 or later; Windows 10 22H2 to 10.0.19045.7725 or later; Windows 11 23H2 to 10.0.22631.7582 or later; Windows 11 24H2 and 25H2 to 10.0.26100.9445 or later; Windows 11 26H1 to 10.0.28000.2954 or later; Windows Server 2025 (including Server Core) to 10.0.26100.33438 or later. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-125 – Out-of-bounds Read
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External POC / Exploit Code
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