Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS score, the attack vector is adjacent (AV:A). What does this mean for this vulnerability?
Exploiting this vulnerability requires an attacker to be within Bluetooth range of the target system.
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
Exploitation of this vulnerability requires that a user enables Bluetooth and the device set to be discoverable, which is not the default configuration on Windows systems. Once discoverability is enabled, no further user interaction is required for exploitation.
How could an attacker exploit the vulnerability?
An attacker could attempt to exploit this vulnerability by sending a specially crafted Bluetooth configuration request to a nearby affected device. If successful, this could allow the attacker to run code on the device without needing user interaction or prior access.
Security updates
10.0.17763.9020 — https://support.microsoft.com/help/5099538
10.0.20348.5386 — https://support.microsoft.com/help/5099540
10.0.19044.7548 — https://support.microsoft.com/help/5099539
10.0.26100.33158 — https://support.microsoft.com/help/5099536
10.0.26200.8875 — https://support.microsoft.com/help/5101650
10.0.28000.2525 — https://support.microsoft.com/help/5101649
10.0.14393.9339 — https://support.microsoft.com/help/5099535
6.2.9200.26226 — https://support.microsoft.com/help/5099445
6.3.9600.23291 — https://support.microsoft.com/help/5099444
Vulnerabilities 1
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High 8.0
Windows Bluetooth Port Driver Remote Code Execution
Heap-based buffer overflow in Windows Bluetooth Port Driver allows an unauthorized attacker to execute code over an adjacent network.
Revision history
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#1
Information published.
References
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CVE-2026-42975 Windows Bluetooth Port Driver Remote Code Execution - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42975
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss