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CVE-2026-106781high7.8

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.

Impact

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.

Source excerpt · mitre

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

n/a · mitre

n/a

1 range
mitre version evidence

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affected

n/a

unaffected

unknown

Other versions: unknown

Original source 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.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-106781

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-269 ↗

CWE-269 Improper Privilege Management

CISA-ADP

Related →
Contributing organizations · 2
mitre

Assigning organization

2026-10-26
CISA-ADP

Additional data publisher

2026-10-30

What changed

Follow changes
  1. CVE · CVE-2026-106781

    Observed 2026-10-30T19:26:02.608Z · upstream updated 2026-10-30T17:16:20.207Z

    Severity assessment changed

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "score": 7.8
  }
]
    Weakness classification changed

    before

    []

    after

    [
  {
    "id": "CWE-269",
    "description": "CWE-269 Improper Privilege Management",
    "source": "CISA-ADP"
  }
]
    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T16:46:39.440669Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "poc"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

2 sources
www.wch-ic.com/downloads/CH341SER_EXE.html
Source referencemitre
github.com/tanuj8124/CVE-2026-106781
exploitmitre · CISA-ADP