All vulnerabilities
CVE-2021-1675

Microsoft Windows Print Spooler Remote Code Execution Vulnerability

Microsoft WindowsOperating systems
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationExploited in the wildAdded to KEV 3 Nov 2021. Known ransomware useCISA KEV
Exploit odds (EPSS)85.3%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in10.0.17763.1999Also 10.0.18363.1621, 10.0.19043.1052 and 9 moreCVE List
Federal deadline17 Nov 2021Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

  • 10.0.17763.1999Windows 10 Version 1809CVE List
  • 10.0.17763.1999Windows Server 2019CVE List
  • 10.0.17763.1999Windows Server 2019 (Server Core installation)CVE List
  • 10.0.18363.1621Windows 10 Version 1909CVE List
  • 10.0.19043.1052Windows 10 Version 21H1CVE List
  • 10.0.19041.1052Windows 10 Version 2004CVE List
Show all 28 fixed versions
  • 10.0.19041.1052Windows Server version 2004CVE List
  • 10.0.19042.1052Windows 10 Version 20H2CVE List
  • 10.0.19042.1052Windows Server version 20H2CVE List
  • 10.0.10240.18967Windows 10 Version 1507CVE List
  • 10.0.14393.4467Windows 10 Version 1607CVE List
  • 10.0.14393.4467Windows Server 2016CVE List
  • 10.0.14393.4467Windows Server 2016 (Server Core installation)CVE List
  • 6.1.7601.25632Windows 7CVE List
  • 6.1.7601.25632Windows 7 Service Pack 1CVE List
  • 6.3.9600.20045Windows 8.1CVE List
  • 6.3.9600.20044Windows 8.1CVE List
  • 6.0.6003.21137Windows Server 2008 Service Pack 2CVE List
  • 6.0.6003.21137Windows Server 2008 Service Pack 2 (Server Core installation)CVE List
  • 6.0.6003.21137Windows Server 2008 Service Pack 2CVE List
  • 6.1.7601.25632Windows Server 2008 R2 Service Pack 1CVE List
  • 6.1.7601.25632Windows Server 2008 R2 Service Pack 1 (Server Core installation)CVE List
  • 6.2.9200.23372Windows Server 2012CVE List
  • 6.2.9200.23372Windows Server 2012 (Server Core installation)CVE List
  • 6.3.9600.20045Windows Server 2012 R2CVE List
  • 6.3.9600.20044Windows Server 2012 R2CVE List
  • 6.3.9600.20045Windows Server 2012 R2 (Server Core installation)CVE List
  • 6.3.9600.20044Windows Server 2012 R2 (Server Core installation)CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 8 Jun 2021Exploit code publicMetasploit
  2. 8 Jun 2021, 22:46 UTCPublishedCVE List
  3. 3 Nov 2021Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Exploit modulePrint Spooler Remote DLL Injection 8 Jun 2021Metasploit

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Microsoft Windows Print Spooler contains an unspecified vulnerability that allows for remote code execution.

Text from CVE List

Affected versions 28

  • Windows 10 Version 1809affected: 10.0.0 before 10.0.17763.1999CVE List
  • Windows Server 2019affected: 10.0.0 before 10.0.17763.1999CVE List
  • Windows Server 2019 (Server Core installation)affected: 10.0.0 before 10.0.17763.1999CVE List
  • Windows 10 Version 1909affected: 10.0.0 before 10.0.18363.1621CVE List
  • Windows 10 Version 21H1affected: 10.0.0 before 10.0.19043.1052CVE List
  • Windows 10 Version 2004affected: 10.0.0 before 10.0.19041.1052CVE List
  • Windows Server version 2004affected: 10.0.0 before 10.0.19041.1052CVE List
  • Windows 10 Version 20H2affected: 10.0.0 before 10.0.19042.1052CVE List
  • Windows Server version 20H2affected: 10.0.0 before 10.0.19042.1052CVE List
  • Windows 10 Version 1507affected: 10.0.0 before 10.0.10240.18967CVE List
  • Windows 10 Version 1607affected: 10.0.0 before 10.0.14393.4467CVE List
  • Windows Server 2016affected: 10.0.0 before 10.0.14393.4467CVE List
  • Windows Server 2016 (Server Core installation)affected: 10.0.0 before 10.0.14393.4467CVE List
  • Windows 7affected: 6.1.0 before 6.1.7601.25632CVE List
  • Windows 7 Service Pack 1affected: 6.1.0 before 6.1.7601.25632CVE List
  • Windows 8.1affected: 6.3.0 before 6.3.9600.20045CVE List
  • Windows 8.1affected: 6.3.0 before 6.3.9600.20044CVE List
  • Windows Server 2008 Service Pack 2affected: 6.0.0 before 6.0.6003.21137CVE List
  • Windows Server 2008 Service Pack 2 (Server Core installation)affected: 6.0.0 before 6.0.6003.21137CVE List
  • Windows Server 2008 Service Pack 2affected: 6.0.0 before 6.0.6003.21137CVE List
  • Windows Server 2008 R2 Service Pack 1affected: 6.1.0 before 6.1.7601.25632CVE List
  • Windows Server 2008 R2 Service Pack 1 (Server Core installation)affected: 6.0.0 before 6.1.7601.25632CVE List
  • Windows Server 2012affected: 6.2.0 before 6.2.9200.23372CVE List
  • Windows Server 2012 (Server Core installation)affected: 6.2.0 before 6.2.9200.23372CVE List
  • Windows Server 2012 R2affected: 6.3.0 before 6.3.9600.20045CVE List
  • Windows Server 2012 R2affected: 6.3.0 before 6.3.9600.20044CVE List
  • Windows Server 2012 R2 (Server Core installation)affected: 6.3.0 before 6.3.9600.20045CVE List
  • Windows Server 2012 R2 (Server Core installation)affected: 6.3.0 before 6.3.9600.20044CVE List

References 4