CVE-2023-1644Public exploit

System crash via unvalidated driver IOCTL

Published Mar 26, 2023 · Updated Nov 22, 2024

Denial of service in IObit Malware Fighter 9.4.0.776 allows local users to crash Windows via a crafted driver IOCTL request. IMFCameraProtect.sys fails to validate input supplied to IOCTL 0x8018E010, and processing the malformed request triggers a kernel failure. A normal local user can invoke the handler without user interaction, causing a system-wide blue-screen crash with no reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in IObit Malware Fighter 9.4.0.776 allows local users to crash Windows via a crafted driver IOCTL request. IMFCameraProtect.sys fails to validate input supplied to IOCTL 0x8018E010, and processing the malformed request triggers a kernel failure. A normal local user can invoke the handler without user interaction, causing a system-wide blue-screen crash with no reported data disclosure or modification.

The record

CVE
CVE-2023-1644
Published
Mar 26, 2023
Updated
Nov 22, 2024
Vendor
IObit
Product
IObit Malware Fighter
Classifications
CWE-404, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 22, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.4.0.776

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

IObit · IObit Malware Fighterversion=9.4.0.776

Published CVSS scores

5.5VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.6VulDBAV:L/AC:L/Au:S/C:N/I:N/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo