calebstewart/CVE-2021-1675

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1109 stars · 223 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A pure PowerShell proof-of-concept exploit for CVE-2021-1675 (PrintNightmare), a Windows Print Spooler local privilege escalation vulnerability. It adds a new local administrator user by default or loads a custom DLL payload via the spooler driver path.

Use cases

• demonstrate the PrintNightmare local privilege escalation on Windows Server
• test whether a Windows host is patched against CVE-2021-1675
• add a local admin user via the Print Spooler vulnerability
• run a custom DLL payload through the spooler exploit
• study a pure PowerShell implementation of a Windows LPE exploit

When to choose

• you need a dependency-free, native PowerShell PoC for PrintNightmare LPE
• you are doing authorized penetration testing or red teaming on Windows Server 2016/2019
• you want to verify patch status against CVE-2021-1675

When to avoid

• you need a remote code execution exploit rather than local privilege escalation
• you require a maintained or supported tool - it is a one-off PoC with no license
• you are not authorized to test the target system

Facets

cli-tool · maturity maintenance

security penetration-testing security windows penetration-testing windows exploit privilege-escalation printnightmare cve-2021-1675 proof-of-concept powershell

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markdown · JSON · MCP: product_card(name="calebstewart/CVE-2021-1675")