Vulnerability · Published Sep 10, 2026 · Assigned by Silabs
CVE-2026-15419CP210x Driver Memory Corruption results in Arbitrary Code Execution
High 7.0
In plain English
A high-severity stack buffer overflow 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 14% of all known vulnerabilities).
Severity (CVSS 4.0)7.0High
Exploit odds (30 days)0.2%top 86.5% 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 corrupt kernel pool memory, resulting in arbitrary code execution with escalated privileges.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Silicon Labs | silabser.sys driver | 0 – through 11.5.0 |
Weakness: CWE-121 · Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1 vendor-advisory, permissions-required