CVE-2023-1443Public exploit

System crash via unvalidated IOCTL SystemBuffer

Published Mar 17, 2023 · Updated Aug 2, 2024

Improper input validation in the fildds.sys driver in Twister Antivirus 8 allows local users to crash Windows via IOCTL 0x80112053. The IOControlCode handler fails to validate SystemBuffer before processing the request, so a crafted DeviceIoControl call triggers a blue-screen crash. A normal local account that can open the driver device is sufficient; the demonstrated consequence is a system crash, with no reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability1.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in the fildds.sys driver in Twister Antivirus 8 allows local users to crash Windows via IOCTL 0x80112053. The IOControlCode handler fails to validate SystemBuffer before processing the request, so a crafted DeviceIoControl call triggers a blue-screen crash. A normal local account that can open the driver device is sufficient; the demonstrated consequence is a system crash, with no reported data disclosure or modification.

The record

CVE
CVE-2023-1443
Published
Mar 17, 2023
Updated
Aug 2, 2024
Vendor
Filseclab Corporation
Product
Twister Antivirus
Classifications
CWE-404, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Filseclab Corporation · Twister Antivirusversion=8

Published CVSS scores

7.8VulDB CNAAV:N/AC:L/Au:N/C:N/I:N/A:C
6.5VulDB CNACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

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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
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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

Technologies

Your stack

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Your stack

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