CVE-2023-1493Public exploit

Local system crash via unvalidated IOCTL buffer

Published Mar 18, 2023 · Updated Aug 2, 2024

Denial of service in MaxProctetor64.sys in Max Secure Anti Virus Plus 19.0.2.1 allows local users to crash Windows via a crafted IOCTL. The driver handles IOCTL 0x220019 without validating the caller-controlled SystemBuffer before using it. A normal local account can reach the device interface, and the published proof of concept triggers a Windows blue-screen crash.

CVSS severity5.5
Medium
EPSS probability0.32%
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 MaxProctetor64.sys in Max Secure Anti Virus Plus 19.0.2.1 allows local users to crash Windows via a crafted IOCTL. The driver handles IOCTL 0x220019 without validating the caller-controlled SystemBuffer before using it. A normal local account can reach the device interface, and the published proof of concept triggers a Windows blue-screen crash.

The record

CVE
CVE-2023-1493
Published
Mar 18, 2023
Updated
Aug 2, 2024
Vendor
Max Secure Software
Product
Max Secure Anti Virus Plus
Classifications
CWE-404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 18, 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=19.0.2.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Max Secure Software · Max Secure Anti Virus Plusversion=19.0.2.1

Published CVSS scores

4.6VulDBAV:L/AC:L/Au:S/C:N/I:N/A:C
5.5VulDBCVSS: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

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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

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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