CVE-2022-21999: Windows Print Spooler Elevation of Privilege Vulnerability

Severity: medium (CVSS 4.6 v2.0)
Exploited in the wild: yes — in CISA KEV since 2022-03-25
EPSS: 41.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-02-09 · updated 2026-06-17
Weakness: CWE-22

Description

Windows Print Spooler Elevation of Privilege Vulnerability

Affected products

Microsoft Windows 10 Version 1507: before 10.0.10240.19204 — fixed in 10.0.10240.19204
Microsoft Windows 10 1607: before 10.0.14393.4946 — fixed in 10.0.14393.4946
Microsoft Windows 10: before 10.0.17763.2565 — fixed in 10.0.17763.2565
Microsoft Windows 10 1909: before 10.0.18363.2094 — fixed in 10.0.18363.2094
Microsoft Windows 10 20H2: before 10.0.19042.1526 — fixed in 10.0.19042.1526
Microsoft Windows 10 21H1: before 10.0.19043.1526 — fixed in 10.0.19043.1526
Microsoft Windows 10: before 10.0.19044.1526 — fixed in 10.0.19044.1526
Microsoft Windows 11 21H2: before 10.0.22000.493 — fixed in 10.0.22000.493
Microsoft Windows 7: all versions
Microsoft Windows 8.1: all versions
Microsoft Windows RT 8.1: all versions
Microsoft Windows Server 2008: r2-sp1
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.4946 — fixed in 10.0.14393.4946
Microsoft Windows Server 2019: before 10.0.17763.2565 — fixed in 10.0.17763.2565
Microsoft Windows Server 2022: before 10.0.20348.524 — fixed in 10.0.20348.524
Microsoft Windows Server 20H2: before 10.0.19042.1526 — fixed in 10.0.19042.1526
Microsoft Windows 10 Version 1507: from 10.0.10240.0 before 10.0.10240.19204 — fixed in 10.0.10240.19204
Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.4946 — fixed in 10.0.14393.4946
Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.2565 — fixed in 10.0.17763.2565
Microsoft Windows 10 1909: from 10.0.0 before 10.0.18363.2094 — fixed in 10.0.18363.2094
Microsoft Windows 10 20H2: from 10.0.0 before 10.0.19042.1526 — fixed in 10.0.19042.1526
Microsoft Windows 10 21H1: from 10.0.0 before 10.0.19043.1526 — fixed in 10.0.19043.1526
Microsoft Windows 10: from 10.0.19043.0 before 10.0.19044.1526 — fixed in 10.0.19044.1526
Microsoft Windows 11 21H2: from 10.0.0 before 10.0.22000.493 — fixed in 10.0.22000.493
Microsoft Windows 7: from 6.1.0 before 6.1.7601.25860 — fixed in 6.1.7601.25860
Microsoft Windows 7 Service Pack 1: from 6.1.0 before 6.1.7601.25860 — fixed in 6.1.7601.25860
Microsoft Windows 8.1: from 6.3.0 before 6.3.9600.20269 — fixed in 6.3.9600.20269
Microsoft Windows Server 2008 R2 Service Pack 1: from 6.1.7601.0 before 6.1.7601.25860 — fixed in 6.1.7601.25860
Microsoft Windows Server 2008 Service Pack 2: from 6.0.6003.0 before 6.0.6003.21374 — fixed in 6.0.6003.21374

How to fix

Upgrade to a fixed version: Microsoft Windows 10 Version 1507 10.0.10240.19204; Microsoft Windows 10 1607 10.0.14393.4946; Microsoft Windows 10 10.0.17763.2565; Microsoft Windows 10 1909 10.0.18363.2094; Microsoft Windows 10 20H2 10.0.19042.1526; Microsoft Windows 10 21H1 10.0.19043.1526; Microsoft Windows 10 10.0.19044.1526; Microsoft Windows 11 21H2 10.0.22000.493; Microsoft Windows Server 2016 10.0.14393.4946; Microsoft Windows Server 2019 10.0.17763.2565; Microsoft Windows Server 2022 10.0.20348.524; Microsoft Windows Server 20H2 10.0.19042.1526. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2022-21999 or the next vulnerability affects your stack