CVE-2026-15419 PUBLISHED

CP210x Driver Memory Corruption results in Arbitrary Code Execution

Assigner: Silabs
Reserved: 10.07.2026 Published: 10.09.2026 Updated: 10.09.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Physical	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Silicon Labs
Product	silabser.sys driver
Versions	Default: unaffected affected from 0 to 11.5.0 (incl.)

References

https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1

Problem Types

CWE-121: Stack-based Buffer Overflow CWE

Impacts

CAPEC-100: Overflow Buffers