CVE-2026-15418 - Vulnerability Details - OpenCVE

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.

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Silicon Labs	Silabser.sys Driver

No data.

No data.

References

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

History

Sun, 13 Sep 2026 20:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Silicon Labs Silicon Labs silabser.sys Driver
Vendors & Products		Silicon Labs Silicon Labs silabser.sys Driver

Thu, 10 Sep 2026 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 10 Sep 2026 17:30:00 +0000

Type	Values Removed	Values Added
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.
Title		CP210x Memory Leakage
Weaknesses		CWE-130
References		https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1
Metrics		cvssV4_0 `{'score': 2.4, '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'}`

MITRE

Status: PUBLISHED

Assigner: Silabs

Published: 2026-09-10T17:15:04.886Z

Updated: 2026-09-10T18:21:20.938Z

Reserved: 2026-07-10T14:57:34.331Z

Link: CVE-2026-15418

Vulnrichment

Updated: 2026-09-10T18:21:18.086Z

NVD

Status : Awaiting Analysis

Published: 2026-09-10T18:17:55.450

Modified: 2026-09-10T19:54:25.810

Link: CVE-2026-15418

Redhat

No data.

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