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5.5

Incorrect Bluetooth Driver Bounds Check Allows Local Service Disruption

CVE-2025-20687 · published 1 year ago
Summary

A bug in the Bluetooth driver could allow an attacker with user-level access to crash your system, disrupting its operation. To protect your business, update your system with the latest patch 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 nbiot_sdk <= 3.6
cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:*
Original advisory text
In Bluetooth driver, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is n...
In Bluetooth driver, there is a possible out of bounds read due to an incorrect bounds check. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00418045; Issue ID: MSV-3481.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.5 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-125Out-of-bounds Read
Timeline
Published8 Jul 2025
Updated26 Oct 2026
First seen7 Mar 2026
Sources
CVE-2025-20687 · NVD
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