IObit Advanced SystemCare Utimate IOCTL AscRegistryFilter.sys 0x8001E004 null pointer dereference

published 2024-12-16 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-51033

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits: 0; none known

A vulnerability was found in IObit Advanced SystemCare Utimate up to 17.0.0. It has been classified as problematic. Affected is the function 0x8001E004 in the library AscRegistryFilter.sys of the component IOCTL Handler. The manipulation leads to null pointer dereference. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 22 mo ago (2024-12-18)

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

shareforall.notion.site https://shareforall.notion.site/IOBit-Advanced-SystemCare-Utimate-AscRegistryFilter-0x8001E004-NPD-DOS-15160437bb1e804cbe8fd4d826f8564f referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA	3.0	5.5	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA	2.0	4.6	AV:L/AC:L/Au:S/C:N/I:N/A:C
CNA	4.0	6.8	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

IObit Advanced SystemCare Utimate

Classification

Weakness

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

References

shareforall.notion.site /IOBit-Advanced-SystemCare-Utimate-AscRegistryFilter-0x8001E004-NPD-DOS-15160437bb1e804cbe8fd4d826f8564f
exploit, third-party-advisory
vuldb.com /?id.288528
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.288528
signature, permissions-required, vdb-entry
vuldb.com /?submit.456038
third-party-advisory, vdb-entry

Sources

CVE List CVE-2024-12659
NVD CVE-2024-12659

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary