CVE-2026-65932 BT122 stops advertising

Medium 5.3 Published Updated

An attacker can cause the BT122 Bluetooth module to stop advertising by sending a specific plaintext message, resulting in a denial of service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-65932?

CVE-2026-65932 is a medium-severity denial of service vulnerability in silabs.com BT122, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The BT122 module stops advertising after receiving a plaintext 'pause enceryption response' message resulting in a denial of service. See vulnerability B-E2 in the related paper below.

Weakness: CWE-440

Which versions are affected by CVE-2026-65932?

How do I fix CVE-2026-65932?

No fix has been published for CVE-2026-65932 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-65932 being exploited?

There is no known exploitation of CVE-2026-65932 in the wild and no public exploit code.

Sources

Also known as GHSA-3j2f-xg4w-894p.

Is CVE-2026-65932 in your software?

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