---
id: 5984
title: "What You Need to Know about PrintNightmare, the Critical Windows Print Spooler Vulnerability"
source_domain: semperis.com
source_url: "https://www.semperis.com/blog/what-you-need-to-know-about-printnightmare-the-critical-windows-print-spooler-vulnerability/"
published_at: "2021-07-06T17:08:29Z"
tags: ["rce", "windows", "vulnerability", "printnightmare", "cve-2021-34527", "cve-2021-1675", "print-spooler"]
phying_url: "https://phying.com/item/5984"
lang: en
---

# What You Need to Know about PrintNightmare, the Critical Windows Print Spooler Vulnerability

## Summary

PrintNightmare explained: CVE-2021-1675 and CVE-2021-34527 enable remote code execution and privilege escalation via the Windows Print Spooler; covers the July patch and the key mitigation—disable the spooler on domain controllers.

## Intelligence Metadata

- **Sources:** semperis.com
- **Published:** 2021-07-06T17:08:29Z
- **Original:** https://www.semperis.com/blog/what-you-need-to-know-about-printnightmare-the-critical-windows-print-spooler-vulnerability/
- **Phying News:** https://phying.com/item/5984