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Vulnerability Intelligence

CVE-2022-21999

HighExploitedPublic exploit

Windows Print Spooler Elevation of Privilege Vulnerability

Published Feb 10, 2022 · Updated Oct 21, 2025

Key Facts

Patch immediately
  • CVE-2022-21999 is a high-severity vulnerability (CVSS 7.8 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 Mar 25, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
  • EPSS estimates a 41% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Windows 10 1507 10.0.10240.19204, Windows 10 1607 10.0.14393.4946, Windows 10 1809 10.0.17763.2565.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.8

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

EPSS (30-day exploit likelihood)

41%

Higher than 98.6% 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-2022-21999 brief as a PDF

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

Description

Windows Print Spooler Elevation of Privilege Vulnerability

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVMar 25, 2022Apr 15, 2022Known
Industry KEV feedMar 25, 2022Apr 15, 2022Known
CIRCL KEVMar 25, 2022Apr 15, 2022Known
ENISA EUVDMar 25, 2022n/aNot reported

Required action: Apply updates per vendor instructions.

Affected Products

45 affected entries in total
ProductAffected versionsFixed in
Windows 10 1507MicrosoftSee advisory10.0.10240.19204
Windows 10 1607MicrosoftSee advisory10.0.14393.4946
Windows 10 1809MicrosoftSee advisory10.0.17763.2565
Windows 10 1909MicrosoftSee advisory10.0.18363.2094
Windows 10 20h2MicrosoftSee advisory10.0.19042.1526
20 more affected products in the full CVE brief

Patched Releases

Windows 10 1507

10.0.10240.19204

Windows 10 1607

10.0.14393.4946

Windows 10 1809

10.0.17763.2565

Windows 10 1909

10.0.18363.2094

Windows 10 20h2

10.0.19042.1526

Windows 10 21h1

10.0.19043.1526

Windows 10 21h2

10.0.19044.1526

Windows 11 21h2

10.0.22000.493

Windows Server 2016

10.0.14393.4946

Windows Server 2019

10.0.17763.2565

Windows Server 2022

10.0.20348.524

Windows Server 20h2

10.0.19042.1526

Windows 10 Version 1507

10.0.10240.19204

Windows 10 Version 1607

10.0.14393.4946

Windows 10 Version 1809

10.0.17763.2565

Windows 10 Version 1909

10.0.18363.2094

Windows 10 Version 20H2

10.0.19042.1526

Windows 10 Version 21H1

10.0.19043.1526

Windows 10 Version 21H2

10.0.19044.1526

Windows 11 version 21H2

10.0.22000.493

Windows 7

6.1.7601.25860

Windows 7 Service Pack 1

6.1.7601.25860

Windows 8.1

6.3.9600.20269

Windows Server 2008 Service Pack 2

6.0.6003.21374

Windows Server 2008 R2 Service Pack 1

6.1.7601.25860

Timeline

  1. Publicly disclosed

    Feb 10, 2022

  2. Added to CISA KEV

    Mar 25, 2022

  3. Added to Industry KEV feed

    Mar 25, 2022

  4. Added to CIRCL KEV

    Mar 25, 2022

  5. Added to ENISA EUVD

    Mar 25, 2022

  6. Last updated

    Oct 21, 2025

Weakness Type

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-59 Improper Link Resolution Before File Access ('Link Following')

References

9 more references in the full CVE brief

FAQ

Common Questions.

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