CVE-2021-1675

ENISA EUVD: EUVD-2021-7142 ↗

Exploited in the Wild ✓ Confirmed 0-Day

Triaged: March 5, 2026 10 articles

VulnLookup ↗ NVD ↗ EUVD ↗ MITRE ↗ CISA KEV ↗

EPSS Score

Source: FIRST.org · 2026-05-24

94.31%

probability

This CVE has a 94.31% probability of being exploited in the next 30 days.

0% Top 100.0th percentile of all CVEs 100%

CVSS v3.1

Source: NVD

7.8

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Temporal

Exploit Code Maturity

Unproven

Remediation Level

Official Fix

Report Confidence

Confirmed

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected Products

Exploits & PoC

cube0x0/CVE-2021-1675

C# and Impacket implementation of PrintNightmare CVE-2021-1675/CVE-2021-34527

1980

calebstewart/CVE-2021-1675

Pure PowerShell implementation of CVE-2021-1675 Print Spooler Local Privilege Escalation (PrintNightmare)

1099

ly4k/PrintNightmare

Python implementation for PrintNightmare (CVE-2021-1675 / CVE-2021-34527)

208

cybersecurityworks553/CVE-2021-1675_PrintNightMare

PoC CVE-2021-1675 — cybersecurityworks553/CVE-2021-1675_PrintNightMare

4 repos — triés par ⭐ Rechercher sur GitHub ↗

Microsoft shares mitigations for Windows PrintNightmare zero-day bug

BleepingComputer Jul 02, 2021

Microsoft June 2021 Patch Tuesday fixes 6 exploited zero-days, 50 flaws

BleepingComputer Jun 08, 2021

Public Windows PrintNightmare 0-day exploit allows domain takeover

BleepingComputer Jun 30, 2021

Microsoft Warns of Critical "PrintNightmare" Flaw Being Exploited in the Wild

TheHackerNews

CISA: Disable Windows Print Spooler on servers not used for printing

BleepingComputer Jul 01, 2021

Qualys Response to CISA Alert: Binding Operational Directive 22-01

Qualys Nov 09, 2021

Microsoft & Adobe Patch Tuesday (June 2021) – Microsoft 50 Vulnerabilities with 5 Critical, Adobe 21 Critical Vulnerabilities

Qualys Jun 08, 2021

Researchers Leak PoC Exploit for a Critical Windows RCE Vulnerability

TheHackerNews

Security Advisory 2021-033

CERT-EU Jun 30, 2021

Microsoft's Emergency Patch Fails to Fully Fix PrintNightmare RCE Vulnerability

TheHackerNews

Signal Intelligence

Confidenceⓘ

75%

EPSS 94.31%

CVSS v3.1 7.8

Mentions 10

Last Seen Nov 09, 2021

CNA Information

Analyst Note

CVE-2021-1675 is the PrintNightmare Windows Print Spooler RCE vulnerability. Published June 8, 2021, it was actively exploited in the wild before Microsoft released patches on June 8 and subsequent updates. The vulnerability became widely documented as a zero-day with proof-of-concept exploitation occurring before official patches were fully deployed, meeting the core zero-day criteria despite limited article coverage in this dataset.