Firetruck

CVE-2021-34527

KEV · Ransomware
Updated Aug 10, 2026 · PUBLISHED
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Description

Microsoft Windows Print Spooler contains an unspecified vulnerability due to the Windows Print Spooler service improperly performing privileged file operations. Successful exploitation allows an attacker to perform remote code execution with SYSTEM privileges. The vulnerability is also known under the moniker of PrintNightmare.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Windows 10 Version 1507Microsoft / Windows 10 Version 1507>= 10.0.10240.0, < 10.0.10240.18969affected
Windows 10 Version 1607Microsoft / Windows 10 Version 1607>= 10.0.14393.0, < 10.0.14393.4470affected
Windows 10 Version 1809Microsoft / Windows 10 Version 1809>= 10.0.0, < 10.0.17763.2029affected
Windows 10 Version 1809Microsoft / Windows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.2029affected
Windows 10 Version 20H2Microsoft / Windows 10 Version 20H2>= 10.0.0, < 10.0.19042.1083affected
Windows 10 Version 21H2Microsoft / Windows 10 Version 21H2>= 10.0.19044.0, < 10.0.19044.1415affected
Windows 10 Version 22H2Microsoft / Windows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.2251affected
Windows 11 version 21H2Microsoft / Windows 11 version 21H2>= 10.0.22000.0, < 10.0.22000.318affected
Windows 11 version 22H2Microsoft / Windows 11 version 22H2>= 10.0.22621.0, < 10.0.22621.674affected
Windows 8.1Microsoft / Windows 8.1>= 6.3.0, < 6.3.9600.20046affected
Windows Server 2008 R2 Service Pack 1Microsoft / Windows Server 2008 R2 Service Pack 1>= 6.1.7601.0, < 6.1.7601.25633affected
Windows Server 2008 R2 Service Pack 1 (Server Core installation)Microsoft / Windows Server 2008 R2 Service Pack 1 (Server Core installation)>= 6.1.7601.0, < 6.1.7601.25633affected
Windows Server 2008 Service Pack 2Microsoft / Windows Server 2008 Service Pack 2>= 6.0.6003.0, < 6.0.6003.21138affected
Windows Server 2008 Service Pack 2 (Server Core installation)Microsoft / Windows Server 2008 Service Pack 2 (Server Core installation)>= 6.0.6003.0, < 6.0.6003.21138affected
Windows Server 2012Microsoft / Windows Server 2012>= 6.2.9200.0, < 6.2.9200.23383affected
Windows Server 2012 R2Microsoft / Windows Server 2012 R2>= 6.3.9600.0, < 6.3.9600.20046affected
Windows Server 2012 R2 (Server Core installation)Microsoft / Windows Server 2012 R2 (Server Core installation)>= 6.3.9600.0, < 6.3.9600.20046affected
Windows Server 2012 (Server Core installation)Microsoft / Windows Server 2012 (Server Core installation)>= 6.2.9200.0, < 6.2.9200.23383affected
Windows Server 2016Microsoft / Windows Server 2016>= 10.0.14393.0, < 10.0.14393.4470affected
Windows Server 2016 (Server Core installation)Microsoft / Windows Server 2016 (Server Core installation)>= 10.0.14393.0, < 10.0.14393.4470affected
Windows Server 2019Microsoft / Windows Server 2019>= 10.0.17763.0, < 10.0.17763.2029affected
Windows Server 2019 (Server Core installation)Microsoft / Windows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.2029affected
Windows Server 2022Microsoft / Windows Server 2022>= 10.0.20348.0, < 10.0.20348.230affected
Windows Server version 20H2Microsoft / Windows Server version 20H2>= 10.0.0, < 10.0.19042.1083affected