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Vulnerability Intelligence

CVE-2023-36884

HighExploitedPublic exploit

Windows Search Remote Code Execution Vulnerability

Published Jul 11, 2023 · Updated Aug 10, 2026

Key Facts

Patch immediately
  • CVE-2023-36884 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Windows 10 1507 (Microsoft), Windows 10 1607 (Microsoft), Windows 10 1809 (Microsoft) and 22 more products.
  • It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jul 5, 2023 and is known to be used in ransomware campaigns. Public exploit code is available.
  • EPSS estimates a 99% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Windows 10 1507 10.0.10240.20107, Windows 10 1607 10.0.14393.6167, Windows 10 1809 10.0.17763.4737.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

99%

Higher than 99.9% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2023-36884 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Windows Search Remote Code Execution Vulnerability

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVJul 17, 2023Aug 29, 2023Known
Industry KEV feedJul 5, 2023Aug 29, 2023Known
CIRCL KEVJul 17, 2023Aug 29, 2023Known
ENISA EUVDJul 17, 2023n/aNot reported

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected Products

38 affected entries in total
ProductAffected versionsFixed in
Windows 10 1507MicrosoftSee advisory10.0.10240.20107
Windows 10 1607MicrosoftSee advisory10.0.14393.6167
Windows 10 1809MicrosoftSee advisory10.0.17763.4737
Windows 10 21h2MicrosoftSee advisory10.0.19044.3324
Windows 10 22h2MicrosoftSee advisory10.0.19044.3324
20 more affected products in the full CVE brief

Patched Releases

Windows 10 1507

10.0.10240.20107

Windows 10 1607

10.0.14393.6167

Windows 10 1809

10.0.17763.4737

Windows 10 21h2

10.0.19044.3324

Windows 10 22h2

10.0.19044.3324

Windows 11 21h2

10.0.22000.2295

Windows 11 22h2

10.0.22621.2134

Windows Server 2016

10.0.14393.6167

Windows Server 2019

10.0.17763.4737

Windows Server 2022

10.0.20348.1903, 10.0.20348.1906

Windows 10 Version 1507

10.0.10240.20107

Windows 10 Version 1607

10.0.14393.6167

Windows 10 Version 1809

10.0.17763.4737

Windows 10 Version 21H2

10.0.19044.3324

Windows 10 Version 22H2

10.0.19045.3324

Windows 11 version 21H2

10.0.22000.2295

Windows 11 version 22H2

10.0.22621.2134

Windows Server 2008 Service Pack 2

6.0.6003.22216

Windows Server 2008 R2 Service Pack 1

6.1.7601.26664

Windows Server 2008 R2 Service Pack 1 (Server Core installation)

6.1.7601.26664

Windows Server 2008 Service Pack 2 (Server Core installation)

6.0.6003.22216

Windows Server 2012

6.2.9200.24414

Windows Server 2012 (Server Core installation)

6.2.9200.24414

Windows Server 2012 R2

6.3.9600.21503

Windows Server 2012 R2 (Server Core installation)

6.3.9600.21503

Timeline

  1. Added to Industry KEV feed

    Jul 5, 2023

  2. Publicly disclosed

    Jul 11, 2023

  3. Added to CISA KEV

    Jul 17, 2023

  4. Added to CIRCL KEV

    Jul 17, 2023

  5. Added to ENISA EUVD

    Jul 17, 2023

  6. Last updated

    Aug 10, 2026

Weakness Type

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

References

7 more references in the full CVE brief

FAQ

Common Questions.

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