Junglewise Threat Intelligence

CVE-2021-1675: Microsoft Windows Print Spooler Remote Code Execution Vulnerability

CVE-2021-1675 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03

Technologies: Microsoft Windows, Microsoft Windows 10, Microsoft Windows Server 2012 R2, Microsoft Windows Server 2012, Microsoft Windows 10 1607, Microsoft Windows 8.1, Microsoft Windows Server 2016, Microsoft Windows Server 2019, Microsoft Windows 10 1809, Microsoft Windows Rt 8.1. Vendors: Microsoft.

Executive brief

The Microsoft Windows Print Spooler service contains a vulnerability that allows for remote code execution. This flaw, often associated with the 'PrintNightmare' vulnerability class, enables an attacker to execute arbitrary code with system privileges.

Affected products

  • Microsoft Windows 10 up to (excluding) 10.0.10240.18967
  • Microsoft Windows 10 1607 up to (excluding) 10.0.14393.4467
  • Microsoft Windows 10 1809 up to (excluding) 10.0.17763.1999
  • Microsoft Windows 10 1909 up to (excluding) 10.0.18363.1621
  • Microsoft Windows 10 2004 up to (excluding) 10.0.19041.1052
  • Microsoft Windows 10 20H2 up to (excluding) 10.0.19042.1052
  • Microsoft Windows 10 21H1 up to (excluding) 10.0.19043.1052
  • Microsoft Windows 7 SP1
  • Microsoft Windows 8.1
  • Microsoft Windows RT 8.1
  • Microsoft Windows Server 2004 up to (excluding) 10.0.19041.1052
  • Microsoft Windows Server 2008 SP2
  • Microsoft Windows Server 2008 R2 SP1
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2016 up to (excluding) 10.0.14393.4467
  • Microsoft Windows Server 2019 up to (excluding) 10.0.17763.1999

Timeline

  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2021-11-03: disclosed
  • 2021-06-08: patched: Initial patch released by Microsoft (later updated)

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