CVE-2023-1638

IObit Malware Fighter IOCTL ImfRegistryFilter.sys 0x8001E040 denial of service

5.5 Medium

A vulnerability was found in IObit Malware Fighter 9.4.0.776. It has been rated as problematic. Affected by this issue is the function 0x8001E024/0x8001E040 in the library ImfRegistryFilter.sys of the component IOCTL Handler. The manipulation leads to denial of service. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. VDB-224018 is the identifier assigned to this vulnerability.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.32%Up 0.3 points since Mar 27, 2023

What each source reports

CVE List Score used 5.5

IObit Malware Fighter IOCTL ImfRegistryFilter.sys 0x8001E040 denial of service

Record: CVE-2023-1638
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0: 5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 4.6 AV:L/AC:L/Au:S/C:N/I:N/A:C
Weakness: CWE-404
Updated: 2026-11-02

EUVDEUVD-2023-23867 5.5

Record: EUVD-2023-23867
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-pfh9-c8wm-gp2p 5.5

A vulnerability was found in IObit Malware Fighter 9.4.0.776. It has been rated as problematic....

Record: GHSA-pfh9-c8wm-gp2p
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-404
Updated: 2026-11-02

NVD 5.5

Record: CVE-2023-1638
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 4.6 MediumAV:L/AC:L/Au:S/C:N/I:N/A:C
Weakness: CWE-404
Updated: 2026-11-02

Affected products

iobit malware fighter

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-1638 is a medium vulnerability (CVSS 5.5) in Iobit Malware Fighter, published March 26, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 24th percentile. No source names a fixed version.