CVE-2026-106781
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductCH340/CH341 USB-to-Serial Windows Driver setup package CH341SER.EXE
PublishedOct 26, 2026
First seenOct 26, 2026
Weakness typeCWE-269Improper privilege management
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| WCH CH340/CH341 USB-to-Serial Windows Driver setup package CH341SER.EXE | 4.0 | — |
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