CVE-2026-16769 RS9116W/SiWx917 plaintext pause encryption request causes DOS
An attacker can cause a denial of service in Silicon Labs RS9116W/SiWx917 modules by sending an unencrypted pause encryption request.
- 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-2026-16769?
CVE-2026-16769 is a high-severity denial of service vulnerability in silabs.com WiseCnnect, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An unencrypted 'pause encryption request' message causes a denial of service in the in the RS9116W/SiWx917. See vulnerability B-E10 in the related paper below.
Weakness: CWE-440
Which versions are affected by CVE-2026-16769?
How do I fix CVE-2026-16769?
No fix has been published for CVE-2026-16769 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-2026-16769 being exploited?
There is no known exploitation of CVE-2026-16769 in the wild and no public exploit code.
Sources
Also known as GHSA-28qg-4c8p-cqvx.