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6.4
CVE-2026-56988: Bluetooth driver can let local attacker gain system rights
CVE-2026-56988 · published 2 months ago
Summary
A part of the Bluetooth driver that runs in the background may mistakenly reuse memory that has already been cleared when two actions happen at the same time. This mistake can let someone with access to the computer take full control of the system without needing the user to click anything. Install the latest security updates from the vendor and consider disabling Bluetooth when it is not needed.
What to do
- Update google :unknown: to version Pixel-family specific:2026-09-05.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | android | Android kernel | |
| Android | :unknown: |
>= Pixel-family specific:0, < Pixel-family specific:2026-09-05 Fix: upgrade to Pixel-family specific:2026-09-05
|
Original advisory text
In multiple functions of bluetooth_cco.cc, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User...
In multiple functions of bluetooth_cco.cc, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
References
- https://source.android.com/security/bulletin/2026-09-01 Vendor Advisory
- https://source.android.com/docs/security/bulletin/pixel/2026/2026-09-01 Vendor Advisory
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
6.4
Medium
Type
CWE-362Race Condition
CWE-416Use After Free
Timeline
Published1 Sep 2026
Updated9 Oct 2026
First seen8 Sep 2026
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