Vulnerability · Published Sep 10, 2026 · Assigned by Silabs
CVE-2026-15418CP210x Memory Leakage
Low 2.4
In plain English
A low-severity security flaw in silabser.sys driver from Silicon Labs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Severity (CVSS 4.0)2.4Low
Exploit odds (30 days)0.2%top 89.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Silicon Labs | silabser.sys driver | 0 – through 11.5.0 |
Weakness: CWE-130 · Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
References
- https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1 vendor-advisory, permissions-required