CVE-2024-12656Public exploit

Local system crash via null pointer dereference

Published Dec 16, 2024 · Updated Dec 16, 2024

Null pointer dereference in FabulaTech USB over Network 6.0.6.1 allows local users to crash Windows through a crafted IOCTL request. The ftusbbus2.sys handler for control code 0x220448 dereferences a null pointer while processing the crafted request. A low-privileged local account can trigger the availability-only failure without user interaction, causing a system-level service interruption.

CVSS severity6.8
Medium
EPSS probability0.31%
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 USB over Network 6.0.6.1 allows local users to crash Windows through a crafted IOCTL request. The ftusbbus2.sys handler for control code 0x220448 dereferences a null pointer while processing the crafted request. A low-privileged local account can trigger the availability-only failure without user interaction, causing a system-level service interruption.

The record

CVE
CVE-2024-12656
Published
Dec 16, 2024
Updated
Dec 16, 2024
Vendor
FabulaTech
Product
USB over Network
Classifications
CWE-476, CWE-404, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 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=6.0.6.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

FabulaTech · USB over Networkversion=6.0.6.1

Published CVSS scores

6.8VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.6VulDBAV:L/AC:L/Au:S/C:N/I:N/A:C

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
CWE-404Improper Resource Shutdown or Release
T1499.004Application 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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