CVE-2026-106781
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-10-26 15:16:35.137000
Last modified
2026-10-30 18:17:17.497000
View original CVE JSON
{
"id": "CVE-2026-106781",
"sourceIdentifier": "[email protected]",
"published": "2026-10-26T15:16:35.137",
"lastModified": "2026-10-30T18:17:17.497",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"version": "n/a",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-30T16:46:39.440669Z",
"id": "CVE-2026-106781",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-269"
}
]
}
],
"references": [
{
"url": "https://github.com/tanuj8124/CVE-2026-106781",
"source": "[email protected]"
},
{
"url": "https://www.wch-ic.com/downloads/CH341SER_EXE.html",
"source": "[email protected]"
},
{
"url": "https://github.com/tanuj8124/CVE-2026-106781",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}