CVE-2023-36704

Local code execution requiring user interaction

Published Oct 10, 2023 · Updated Apr 14, 2025

Use of an uninitialized resource in Windows Setup Files Cleanup allows local users to execute code on Windows 10 1809 and Server 2019. Microsoft has not published the affected function, the uninitialized resource, or how cleanup input reaches the faulty operation. Exploitation requires user interaction on the local system and can compromise confidentiality, integrity, and availability.

CVSS severity7.8
High
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of an uninitialized resource in Windows Setup Files Cleanup allows local users to execute code on Windows 10 1809 and Server 2019. Microsoft has not published the affected function, the uninitialized resource, or how cleanup input reaches the faulty operation. Exploitation requires user interaction on the local system and can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2023-36704
Published
Oct 10, 2023
Updated
Apr 14, 2025
Vendor
Microsoft
Product
Windows Server 2019
Classifications
CWE-908
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2025Record 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=10.0.17763.0 <10.0.17763.4974

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.4974
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.4974
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.4974; version=10.0.17763.0 <10.0.17763.4974

Published CVSS scores

7.8Microsoft CorporationCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource

Public exploit references

No public exploit references are available in this record.

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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