CVE-2023-1641

IObit Malware Fighter IOCTL ObCallbackProcess.sys 0x222018 denial of service

5.5 Medium

A vulnerability, which was classified as problematic, has been found in IObit Malware Fighter 9.4.0.776. This issue affects the function 0x222018 in the library ObCallbackProcess.sys of the component IOCTL Handler. The manipulation leads to denial of service. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The identifier VDB-224021 was 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 ObCallbackProcess.sys 0x222018 denial of service

Record: CVE-2023-1641
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-2023-23870 5.5

Record: EUVD-2023-23870
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: 2026-11-03

GitHub AdvisoriesGHSA-53fj-cx65-7q33 5.5

A vulnerability, which was classified as problematic, has been found in IObit Malware Fighter 9.4...

Record: GHSA-53fj-cx65-7q33
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-2023-1641
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 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

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

In short

CVE-2023-1641 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.