CVE-2021-1675

96

FAUCET Score

CVE-2021-1675 is a critical Remote Code Execution vulnerability affecting the Windows Print Spooler service across Microsoft products. This high-severity flaw (CVSS 7.8) allows an unauthenticated attacker to remotely execute code with SYSTEM privileges, leading to complete compromise of confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, including in known ransomware campaigns, with public exploit code available (e.g., Metasploit modules). It has garnered significant community attention and media coverage, underscoring its widespread impact and urgency.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 10.0.10240.18967CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1507::::::::
		< 10.0.14393.4467CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1607::::::::
		< 10.0.17763.1999CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1809::::::::
		< 10.0.18363.1621CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1909::::::::
		< 10.0.19041.1052CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_2004::::::::

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

1.8

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

84.81%

Probability of exploitation in next 30 days

EPSS Percentile

99.7%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

Added to KEV · Nov 3, 2021

Metasploit: Print Spooler Remote DLL Injection · Jun 8, 2021

This CVE's current EPSS score of 0.8481 is in the 100th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (44)

microsoftpatch availablevia nvd_reference

microsoftpatch availablevia msrc

Product: Windows 10 Version 1809 for 32-bit SystemsFixed in: 10.0.17763.1999

microsoftpatch availablevia msrc

Product: Windows 10 Version 1809 for x64-based SystemsFixed in: 10.0.17763.1999

microsoftpatch availablevia msrc

Product: Windows 10 Version 1809 for ARM64-based SystemsFixed in: 10.0.17763.1999

microsoftpatch availablevia msrc

Product: Windows Server 2019Fixed in: 10.0.17763.1999

microsoftpatch availablevia msrc

Product: Windows Server 2019 (Server Core installation)Fixed in: 10.0.17763.1999

microsoftpatch availablevia msrc

Product: Windows 10 Version 1909 for 32-bit SystemsFixed in: 10.0.18363.1621

microsoftpatch availablevia msrc

Product: Windows 10 Version 1909 for x64-based SystemsFixed in: 10.0.18363.1621

microsoftpatch availablevia msrc

Product: Windows 10 Version 1909 for ARM64-based SystemsFixed in: 10.0.18363.1621

microsoftpatch availablevia msrc

Product: Windows 10 Version 21H1 for x64-based SystemsFixed in: 10.0.19043.1052

microsoftpatch availablevia msrc

Product: Windows 10 Version 21H1 for ARM64-based SystemsFixed in: 10.0.19043.1052

microsoftpatch availablevia msrc

Product: Windows 10 Version 21H1 for 32-bit SystemsFixed in: 10.0.19043.1052

microsoftpatch availablevia msrc

Product: Windows 10 Version 2004 for 32-bit SystemsFixed in: 10.0.19041.1052

microsoftpatch availablevia msrc

Product: Windows 10 Version 2004 for ARM64-based SystemsFixed in: 10.0.19041.1052

microsoftpatch availablevia msrc

Product: Windows 10 Version 2004 for x64-based SystemsFixed in: 10.0.19041.1052

microsoftpatch availablevia msrc

Product: Windows Server, version 2004 (Server Core installation)Fixed in: 10.0.19041.1052

microsoftpatch availablevia msrc

Product: Windows 10 Version 20H2 for 32-bit SystemsFixed in: 10.0.19042.1052

microsoftpatch availablevia msrc

Product: Windows 10 Version 20H2 for ARM64-based SystemsFixed in: 10.0.19042.1052

microsoftpatch availablevia msrc

Product: Windows Server, version 20H2 (Server Core Installation)Fixed in: 10.0.19042.1052

microsoftpatch availablevia msrc

Product: Windows 10 for 32-bit SystemsFixed in: 10.0.10240.18967

microsoftpatch availablevia msrc

Product: Windows 10 for x64-based SystemsFixed in: 10.0.10240.18967

microsoftpatch availablevia msrc

Product: Windows 10 Version 1607 for 32-bit SystemsFixed in: 10.0.14393.4467

microsoftpatch availablevia msrc

Product: Windows 10 Version 1607 for x64-based SystemsFixed in: 10.0.14393.4467

microsoftpatch availablevia msrc

Product: Windows Server 2016Fixed in: 10.0.14393.4467

microsoftpatch availablevia msrc

Product: Windows Server 2016 (Server Core installation)Fixed in: 10.0.14393.4467

microsoftpatch availablevia msrc

Product: Windows 7 for 32-bit Systems Service Pack 1Fixed in: 6.1.7601.25632

microsoftpatch availablevia msrc

Product: Windows 7 for x64-based Systems Service Pack 1Fixed in: 6.1.7601.25632

microsoftpatch availablevia msrc

Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1Fixed in: 6.1.7601.25632

microsoftpatch availablevia msrc

Product: Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)Fixed in: 6.1.7601.25632

microsoftpatch availablevia msrc

Product: Windows 8.1 for 32-bit systemsFixed in: 6.3.9600.20045

microsoftpatch availablevia msrc

Product: Windows 8.1 for x64-based systemsFixed in: 6.3.9600.20045

microsoftpatch availablevia msrc

Product: Windows Server 2012 R2Fixed in: 6.3.9600.20045

microsoftpatch availablevia msrc

Product: Windows Server 2012 R2 (Server Core installation)Fixed in: 6.3.9600.20045

microsoftpatch availablevia msrc

Product: Windows 8.1 for 32-bit systemsFixed in: 6.3.9600.20044

microsoftpatch availablevia msrc

Product: Windows 8.1 for x64-based systemsFixed in: 6.3.9600.20044

microsoftpatch availablevia msrc

Product: Windows Server 2012 R2Fixed in: 6.3.9600.20044

microsoftpatch availablevia msrc

Product: Windows Server 2012 R2 (Server Core installation)Fixed in: 6.3.9600.20044

microsoftpatch availablevia msrc

Product: Windows RT 8.1Fixed in: 6.3.9600.20045

microsoftpatch availablevia msrc

Product: Windows Server 2008 for 32-bit Systems Service Pack 2Fixed in: 6.0.6003.21137

microsoftpatch availablevia msrc

Product: Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)Fixed in: 6.0.6003.21137

microsoftpatch availablevia msrc

Product: Windows Server 2008 for x64-based Systems Service Pack 2Fixed in: 6.0.6003.21137

microsoftpatch availablevia msrc

Product: Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)Fixed in: 6.0.6003.21137

microsoftpatch availablevia msrc

Product: Windows Server 2012Fixed in: 6.2.9200.23372

microsoftpatch availablevia msrc

Product: Windows Server 2012 (Server Core installation)Fixed in: 6.2.9200.23372

Vendor Advisories (1)

microsoft2021-Jun/CVE-2021-1675Critical

Windows Print Spooler Remote Code Execution Vulnerability

References

cisa.gov / known-exploited-vulnerabilities-catalog

US Government Resource

packetstormsecurity.com / files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html

Third Party AdvisoryVDB Entry

packetstormsecurity.com / files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code-Execution.html

Third Party AdvisoryVDB Entry

packetstormsecurity.com / files/167261/Print-Spooler-Remote-DLL-Injection.html

ExploitThird Party AdvisoryVDB Entry

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2021-1675

PatchVendor Advisory

kb.cert.org / vuls/id/383432

Third Party AdvisoryUS Government Resource