CVE-2026-15419 CP210x Driver Memory Corruption results in Arbitrary Code Execution
A local attacker with a malicious device can corrupt kernel memory in the CP210x driver to execute arbitrary code with elevated privileges.
- 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-2026-15419?
CVE-2026-15419 is a high-severity memory corruption 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 driver for CP210x devices v11.5.0 and earlier, a local unprivileged user with a malicious device can use malformed packets to corrupt kernel pool memory, resulting in arbitrary code execution with escalated privileges.
Weakness: CWE-121
Which versions are affected by CVE-2026-15419?
How do I fix CVE-2026-15419?
No fix has been published for CVE-2026-15419 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-15419 being exploited?
There is no known exploitation of CVE-2026-15419 in the wild and no public exploit code.
Sources
Also known as GHSA-56c3-4jhx-hj8g.