---
id: 900
title: "PrintNightmare: What You Need to Know"
source_domain: bugcrowd.com
source_url: "https://www.bugcrowd.com/blog/printnightmare-what-you-need-to-know/"
published_at: "2021-07-23 00:00"
tags: ["rce", "microsoft", "ransomware", "windows", "printnightmare", "cve-2021-34527", "cve-2021-1675", "print-spooler", "mimikatz", "patch"]
phying_url: "https://phying.com/item/900"
lang: en
---

# PrintNightmare: What You Need to Know

## Summary

PrintNightmare (CVE-2021-34527, tied to CVE-2021-1675) is a Windows Print Spooler RCE flaw enabling SYSTEM-level code execution; Microsoft shipped out-of-band patches after PoC spread via GitHub.

## Intelligence Metadata

- **Sources:** bugcrowd.com
- **Published:** 2021-07-23 00:00
- **Original:** https://www.bugcrowd.com/blog/printnightmare-what-you-need-to-know/
- **Phying News:** https://phying.com/item/900