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9.8

Windows Bluetooth Driver Allows Unauthorized Access to Sensitive Data

CVE-2025-20672 · published 1 year ago
Summary

A vulnerability in the Windows Bluetooth driver could allow a malicious user to gain unauthorized access to sensitive data on a local computer. This could happen even if the user doesn't interact with the computer. To stay secure, update the Windows Bluetooth driver as soon as possible.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
mediatek mt7902_firmware <= 3.6
cpe:2.3:o:mediatek:mt7902_firmware:*:*:*:*:*:*:*:*
mediatek mt7921_firmware <= 3.6
cpe:2.3:o:mediatek:mt7921_firmware:*:*:*:*:*:*:*:*
mediatek mt7922_firmware <= 3.6
cpe:2.3:o:mediatek:mt7922_firmware:*:*:*:*:*:*:*:*
mediatek mt7925_firmware <= 3.6
cpe:2.3:o:mediatek:mt7925_firmware:*:*:*:*:*:*:*:*
mediatek mt7927_firmware <= 3.6
cpe:2.3:o:mediatek:mt7927_firmware:*:*:*:*:*:*:*:*
Original advisory text
In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interacti...
In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00412257; Issue ID: MSV-3292.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
9.8 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-122Heap-based Buffer Overflow
Timeline
Published2 Jun 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-20672 · NVD
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