CVE-2026-19293 SMP security request
The SMP security request omits the maximum encryption key size, allowing attackers to use weaker keys and facilitate brute-force attacks on Bluetooth connections.
- 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-2026-19293?
CVE-2026-19293 is a high-severity vulnerability in silabs.com WiseConnect, 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
SMP security request (from peripheral) does not include the maximum encryption key size supported. Using a key with less than the maximum keysize makes brute-forcing the key easier. See V6 in BLERP paper linked below.
Weakness: CWE-521
Which versions are affected by CVE-2026-19293?
How do I fix CVE-2026-19293?
No fix has been published for CVE-2026-19293 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19293 being exploited?
There is no known exploitation of CVE-2026-19293 in the wild and no public exploit code.
Sources
Also known as GHSA-vm4r-7vjx-6f97.