CVE-2024-12661Public exploit

Local system crash via malformed driver IOCTL

Published Dec 16, 2024 · Updated Dec 16, 2024

NULL pointer dereference in Advanced SystemCare Ultimate 17.0.0 and earlier allows local users to crash Windows via a crafted IOCTL request. The AscRegistryFilter.sys IOCTL handler dereferences a null pointer while processing control code 0x8001E024. Low-privileged local access is required, and successful exploitation interrupts availability by crashing the host.

CVSS severity6.8
Medium
EPSS probability0.38%
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 Advanced SystemCare Ultimate 17.0.0 and earlier allows local users to crash Windows via a crafted IOCTL request. The AscRegistryFilter.sys IOCTL handler dereferences a null pointer while processing control code 0x8001E024. Low-privileged local access is required, and successful exploitation interrupts availability by crashing the host.

The record

CVE
CVE-2024-12661
Published
Dec 16, 2024
Updated
Dec 16, 2024
Vendor
IObit
Product
Advanced SystemCare Ultimate
Classifications
CWE-404, CWE-476, 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=17.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

IObit · Advanced SystemCare Ultimateversion=17.0

Published CVSS scores

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
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:3.0/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-404Improper Resource Shutdown or Release
CWE-476NULL Pointer Dereference
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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