CVE-2023-1640

Name: CVE-2023-1640
Creator: NVD / NIST
Published: 2023-03-26T22:15:06.893+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2023-1640 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A vulnerability classified as problematic was found in IObit Malware Fighter 9.4.0.776. This vulnerability affects the function 0x222010 in the library ObCallbackProcess.sys of the component IOCTL Handler. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

A vulnerability classified as problematic was found in IObit Malware Fighter 9.4.0.776. This vulnerability affects the function 0x222010 in the library ObCallbackProcess.sys of the component IOCTL Handler. The manipulation leads to denial of service. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-224020.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.32%

23.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Iobit	Malware Fighter	9.4.0.776

References

https://drive.google.com/file/d/1AcwSxTA0_zh7mmxU5J8WphRqg_mQsO-g/viewProduct, Third Party Advisory
https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1640Exploit, Third Party Advisory
https://vuldb.com/?ctiid.224020Third Party Advisory
https://vuldb.com/?id.224020Third Party Advisory
https://drive.google.com/file/d/1AcwSxTA0_zh7mmxU5J8WphRqg_mQsO-g/viewProduct, Third Party Advisory
https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1640Exploit, Third Party Advisory
https://vuldb.com/?ctiid.224020Third Party Advisory
https://vuldb.com/?id.224020Third Party Advisory

Timeline

Published: Mar 26, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1640?

How severe is CVE-2023-1640?

CVE-2023-1640 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1640?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1640?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST