CVE-2026-15418 PUBLISHED

CP210x Memory Leakage

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 leak up to 145 bytes of uninitialized kernel pool memory. This vulnerability affects Windows 10 and earlier.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 2.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Physical	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	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-130: Improper Handling of Length Parameter Inconsistency CWE

Impacts

CAPEC-116: Excavation