CVE-2023-1188Public exploit

System crash via unvalidated IOCTL system buffer

Published Mar 6, 2023 · Updated Mar 5, 2025

Improper resource handling in FabulaTech Webcam for Remote Desktop 2.8.42 allows local users to crash the host through a driver IOCTL. The ftwebcam.sys handler for IOCTL 0x222018 uses the caller-controlled SystemBuffer without validating it, allowing a crafted request to trigger a blue-screen crash. A low-privileged local account can invoke the driver and interrupt all services on the host; no remote trigger or data access is reported.

CVSS severity5.5
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper resource handling in FabulaTech Webcam for Remote Desktop 2.8.42 allows local users to crash the host through a driver IOCTL. The ftwebcam.sys handler for IOCTL 0x222018 uses the caller-controlled SystemBuffer without validating it, allowing a crafted request to trigger a blue-screen crash. A low-privileged local account can invoke the driver and interrupt all services on the host; no remote trigger or data access is reported.

The record

CVE
CVE-2023-1188
Published
Mar 6, 2023
Updated
Mar 5, 2025
Vendor
FabulaTech
Product
Webcam for Remote Desktop
Classifications
CWE-404, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.8.42

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

FabulaTech · Webcam for Remote Desktopversion=2.8.42

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.7VulDBAV:L/AC:L/Au:S/C:N/I:N/A:P
3.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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