CVE-2023-2874Public exploit

Windows crash via unvalidated IOCTL system buffer

Published May 24, 2023 · Updated Aug 2, 2024

Denial of service in filppd.sys in Filseclab Corporation Twister Antivirus 8 allows local users to crash Windows via crafted IOCTL requests. The driver fails to validate SystemBuffer contents before processing twelve IOCTL codes in its IoControlCode handler. A normal local user can invoke the handler; successful exploitation causes a Windows blue-screen crash, with no reported data access or modification.

CVSS severity5.5
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in filppd.sys in Filseclab Corporation Twister Antivirus 8 allows local users to crash Windows via crafted IOCTL requests. The driver fails to validate SystemBuffer contents before processing twelve IOCTL codes in its IoControlCode handler. A normal local user can invoke the handler; successful exploitation causes a Windows blue-screen crash, with no reported data access or modification.

The record

CVE
CVE-2023-2874
Published
May 24, 2023
Updated
Aug 2, 2024
Vendor
Filseclab Corporation
Product
Twister Antivirus
Classifications
CWE-404, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 24, 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?

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

  1. Affected versionversion=8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Filseclab Corporation · Twister Antivirusversion=8

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
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

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Your stack

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