CVE Catalog

CVE-2026-106781

HighCVSS 7.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.15%

4th percentile - higher than 4% of all known CVEs

Summary

An issue in the WCH CH340/CH341 USB-to-Serial Windows Driver setup package CH341SER.EXE version 4.0 allows a local attacker to escalate privileges. The description does not provide further technical details.

Risk Assessment

A local attacker may gain higher privileges on a Windows system, potentially leading to full workstation compromise. However, this requires local access to the system.

Recommendation

Update the CH341SER.EXE driver package to a version later than 4.0 or contact the WCH vendor. Restrict the ability of unprivileged users to install drivers.

Related vulnerabilities

Original NVD description (English source)

An issue in WCH CH340/CH341 USB-to-Serial Windows Driver setup package CH341SER.EXE version 4.0 allows a local attacker to escalate privileges.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS