CVE-2026-15417 CP210x Denial of Service
A local unprivileged user can cause a kernel crash in the CP210x Windows driver by using incorrect settings, leading to 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-2026-15417?
CVE-2026-15417 is a medium-severity denial of service vulnerability in Silicon Labs silabser.sys driver, published on 10 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the silabser.sys Windows 8 driver for CP210x devices, a local unprivileged user can use incorrect driver settings to cause a kernel crash.
Weakness: CWE-369
Which versions are affected by CVE-2026-15417?
How do I fix CVE-2026-15417?
No fix has been published for CVE-2026-15417 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-2026-15417 being exploited?
There is no known exploitation of CVE-2026-15417 in the wild and no public exploit code.
Sources
Also known as GHSA-mh8r-v298-qg9c.