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.

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References

Other References

https://github.com/tanuj8124/CVE-2026-106781 https://www.wch-ic.com/downloads/CH341SER_EXE.html

Frequently Asked Questions

What is CVE-2026-106781? +

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.

How do I check if I'm vulnerable to CVE-2026-106781? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.