CVE-2026-70126

Analyzed Analyzed - Analysis Complete

Out-of-Bounds Read in Windows Bluetooth Port Driver

Publication date: 2026-10-13

Last updated on: 2026-10-28

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows Bluetooth Port Driver allows an unauthorized attacker to execute code over an adjacent network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-10-13

Last Modified

2026-10-28

Generated

2026-11-08

AI Q&A

2026-10-14

EPSS Evaluated

2026-11-07

NVD

CVE-2026-70126

EUVD

EUVD-2026-99174

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)
microsoft	windows_server_2022	to 10.0.20348.5761 (exc)
microsoft	windows_server_2016	to 10.0.14393.9612 (exc)
microsoft	windows_server_2019	to 10.0.17763.9376 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read flaw in the Windows Bluetooth Port Driver. It allows an unauthorized attacker within adjacent network range to execute arbitrary code on affected systems.

Detection Guidance

Detection requires monitoring for unusual Bluetooth driver activity or network traffic patterns. Use Windows Event Viewer to check for Bluetooth-related errors or crashes in the Bluetooth Port Driver logs. Enable verbose logging for Bluetooth services via PowerShell commands like 'Get-WinEvent -LogName System -ProviderName Microsoft-Windows-Bluetooth' to identify anomalies.

Impact Analysis

An attacker could exploit this to run malicious code on your device, potentially gaining control over it. This could lead to data theft, installation of malware, or further network compromise if the system is connected to other devices.

Compliance Impact

This vulnerability allows remote code execution via an adjacent network, which could lead to unauthorized access to sensitive data. This may violate data protection requirements under GDPR and HIPAA by enabling unauthorized data access or disclosure.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft Update to patch the Bluetooth Port Driver vulnerability. Disable Bluetooth if not in use and restrict adjacent network access to Bluetooth-enabled systems.

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EPSS Chart

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