CVE-2023-1186Public exploit

Windows crash via unchecked pool-allocation result

Published Mar 6, 2023 · Updated Nov 25, 2024

NULL pointer dereference in FabulaTech Webcam for Remote Desktop 2.8.42 allows local users to crash Windows through driver IOCTLs. The ftwebcam.sys handlers for IOCTL codes 0x222010 and 0x222018 dereference the result of ExAllocatePoolWithTag without checking whether allocation returned NULL. A low-privileged local user can invoke the handlers and cause a blue-screen system crash, affecting availability only.

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

NULL pointer dereference in FabulaTech Webcam for Remote Desktop 2.8.42 allows local users to crash Windows through driver IOCTLs. The ftwebcam.sys handlers for IOCTL codes 0x222010 and 0x222018 dereference the result of ExAllocatePoolWithTag without checking whether allocation returned NULL. A low-privileged local user can invoke the handlers and cause a blue-screen system crash, affecting availability only.

The record

CVE
CVE-2023-1186
Published
Mar 6, 2023
Updated
Nov 25, 2024
Vendor
FabulaTech
Product
Webcam for Remote Desktop
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 2024Record 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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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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-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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