CVE-2023-36393

Local code execution via untrusted search path

Published Nov 14, 2023 · Updated Oct 8, 2025

Untrusted search path handling in Microsoft Windows User Interface Application Core allows local users to execute arbitrary code. Microsoft identifies CWE-426 but does not disclose the affected file, function, resource name, or exact search-path operation. Exploitation requires user interaction, and successful code executes in the affected user's security context.

CVSS severity7.8
High
EPSS probability0.99%
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

Untrusted search path handling in Microsoft Windows User Interface Application Core allows local users to execute arbitrary code. Microsoft identifies CWE-426 but does not disclose the affected file, function, resource name, or exact search-path operation. Exploitation requires user interaction, and successful code executes in the affected user's security context.

The record

CVE
CVE-2023-36393
Published
Nov 14, 2023
Updated
Oct 8, 2025
Vendor
Microsoft
Product
Windows 10 Version 1507
Classifications
CWE-426, CAPEC-38
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2025Record 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=10.0.10240.0 <10.0.10240.20308

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Microsoft · Windows 10 Version 1507version=10.0.10240.0 <10.0.10240.20308
Microsoft · Windows Server 2019version=10.0.17763.0 <10.0.17763.5122
Microsoft · Windows Server 2016 (Server Core installation)version=10.0.14393.0 <10.0.14393.6452
Microsoft · Windows 11 version 21H2version=10.0.0 <10.0.22000.2600
Microsoft · Windows Server 2012 (Server Core installation)version=6.2.9200.0 <6.2.9200.24569
Microsoft · Windows Server 2012version=6.2.9200.0 <6.2.9200.24569
Microsoft · Windows 10 Version 21H2version=10.0.19043.0 <10.0.19043.3693
Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)version=10.0.25398.0 <10.0.25398.531
Microsoft · Windows Server 2016version=10.0.14393.0 <10.0.14393.6452
Microsoft · Windows 11 Version 22H3version=10.0.22631.0 <10.0.22631.2715
Microsoft · Windows Server 2008 R2 Service Pack 1version=6.1.7601.0 <6.1.7601.26816
Microsoft · Windows Server 2008 R2 Service Pack 1 (Server Core installation)version=6.1.7601.0 <6.1.7601.26816
Microsoft · Windows 10 Version 22H2version=10.0.19045.0 <10.0.19045.3693
Microsoft · Windows Server 2012 R2 (Server Core installation)version=6.3.9600.0 <6.3.9600.21668
Microsoft · Windows Server 2019 (Server Core installation)version=10.0.17763.0 <10.0.17763.5122
Microsoft · Windows 11 Version 23H2version=10.0.22631.0 <10.0.22631.2715
Microsoft · Windows 11, version 22H2version=10.0.22621.0 <10.0.22621.2715
Microsoft · Windows 10 Version 1607version=10.0.14393.0 <10.0.14393.6452
Microsoft · Windows Server 2008 Service Pack 2version=6.0.6003.0 <6.0.6003.22367
Microsoft · Windows Server 2022version=10.0.20348.0 <10.0.20348.2113
Microsoft · Windows 10 Version 1809version=10.0.0 <10.0.17763.5122; version=10.0.17763.0 <10.0.17763.5122
Microsoft · Windows Server 2012 R2version=6.3.9600.0 <6.3.9600.21668
Microsoft · Windows Server 2008 Service Pack 2 (Server Core installation)version=6.0.6003.0 <6.0.6003.22367

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-426Untrusted Search Path
CAPEC-38Leveraging/Manipulating Configuration File Search Paths

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

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