CVE-2023-1640: IObit Malware Fighter

IObit Malware Fighter IOCTL ObCallbackProcess.sys 0x222010 denial of service

CVSS 5.5 MediumEPSS 0.0032 · 24th percentile

Published by the CVE Program (CNA: VulDB) at 26 Mar 2023, 21:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
IObit	Malware Fighter	affected 9.4.0.776

Identifiers

CVE-2023-1640

CNA

VulDB

Weakness (CWE)

CWE-404

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.5	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CNA (VulDB)Used for this record
5.5	Medium	3.0	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CNA (VulDB)
4.6	Medium	2.0	AV:L/AC:L/Au:S/C:N/I:N/A:C	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.0032, the 24th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 26 Mar 2023. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/?id.224020 vdb-entrytechnical-description
vuldb.com/?ctiid.224020 signaturepermissions-required
github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1640 related
drive.google.com/file/d/1AcwSxTA0_zh7mmxU5J8WphRqg_mQsO-g/view exploit

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.