CVE-2026-15418 CP210x Memory Leakage
A local attacker with a malicious device can leak uninitialized kernel memory via malformed packets in the CP210x driver.
- 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-2026-15418?
CVE-2026-15418 is a low-severity 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 leak up to 145 bytes of uninitialized kernel pool memory. This vulnerability affects Windows 10 and earlier.
Weakness: CWE-130
Which versions are affected by CVE-2026-15418?
How do I fix CVE-2026-15418?
No fix has been published for CVE-2026-15418 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15418 being exploited?
There is no known exploitation of CVE-2026-15418 in the wild and no public exploit code.
Sources
Also known as GHSA-fq6h-3222-8vm9.