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Vulnerability Intelligence

CVE-2022-26923

HighExploitedPublic exploit

Active Directory Domain Services Elevation of Privilege Vulnerability

Published May 11, 2022 · Updated Oct 21, 2025

Key Facts

Patch immediately
  • CVE-2022-26923 is a high-severity vulnerability (CVSS 8.8 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 Aug 18, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
  • EPSS estimates a 84% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Windows 10 1507 10.0.10240.19297, Windows 10 1607 10.0.14393.5850, Windows 10 1809 10.0.17763.4252.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.8

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

EPSS (30-day exploit likelihood)

84%

Higher than 99.6% 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-2022-26923 brief as a PDF

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

Description

Active Directory Domain Services Elevation of Privilege Vulnerability

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVAug 18, 2022Sep 8, 2022Not reported
Industry KEV feedAug 18, 2022Sep 8, 2022Known
CIRCL KEVAug 18, 2022Sep 8, 2022Not reported
ENISA EUVDAug 18, 2022n/aNot reported

Required action: Apply updates per vendor instructions.

Affected Products

31 affected entries in total
ProductAffected versionsFixed in
Windows 10 1507MicrosoftSee advisory10.0.10240.19297
Windows 10 1607MicrosoftSee advisory10.0.14393.5850
Windows 10 1809MicrosoftSee advisory10.0.17763.4252
Windows 10 1909MicrosoftSee advisory10.0.18363.2274
Windows 10 20h2MicrosoftSee advisory10.0.19042.1706
20 more affected products in the full CVE brief

Patched Releases

Windows 10 1507

10.0.10240.19297

Windows 10 1607

10.0.14393.5850

Windows 10 1809

10.0.17763.4252

Windows 10 1909

10.0.18363.2274

Windows 10 20h2

10.0.19042.1706

Windows 10 21h1

10.0.19043.1706

Windows 10 21h2

10.0.19044.1706

Windows 11 21h2

10.0.22000.1817

Windows Server 2016

10.0.14393.5850

Windows Server 2019

10.0.17763.4252

Windows Server 2022

10.0.20348.1668

Windows 10 Version 1507

10.0.10240.19297

Windows 10 Version 1607

10.0.14393.5850

Windows 10 Version 1809

10.0.17763.4252

Windows 10 Version 1909

10.0.18363.2274

Windows 10 Version 20H2

10.0.19042.1706

Windows 10 Version 21H1

10.0.19043.1706

Windows 10 Version 21H2

10.0.19043.1706

Windows 11 version 21H2

10.0.22000.1817

Windows 8.1

6.3.9600.20371

Windows Server 2012 R2

6.3.9600.20919

Windows Server 2012 R2 (Server Core installation)

6.3.9600.20919

Windows Server 2016 (Server Core installation)

10.0.14393.5850

Windows Server 2019 (Server Core installation)

10.0.17763.4252

Windows Server version 20H2

10.0.19042.1706

Timeline

  1. Publicly disclosed

    May 11, 2022

  2. Added to CISA KEV

    Aug 18, 2022

  3. Added to Industry KEV feed

    Aug 18, 2022

  4. Added to CIRCL KEV

    Aug 18, 2022

  5. Added to ENISA EUVD

    Aug 18, 2022

  6. Last updated

    Oct 21, 2025

Weakness Type

  • CWE-295 Improper Certificate Validation

References

12 more references in the full CVE brief

FAQ

Common Questions.

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