Back to KEVs

CVE-2021-1675

Windows Print Spooler Remote Code Execution Vulnerability

Basic Information

CVE State: PUBLISHED
Reserved Date: December 02, 2020
Published Date: June 08, 2021
Last Updated: August 03, 2024
Vendor: Microsoft
Product: Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1909, Windows 10 Version 21H1, Windows 10 Version 2004, Windows Server version 2004, Windows 10 Version 20H2, Windows Server version 20H2, Windows 10 Version 1507, Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation), Windows 7, Windows 7 Service Pack 1, Windows 8.1, Windows Server 2008 Service Pack 2, Windows Server 2008 Service Pack 2 (Server Core installation), Windows Server 2008 Service Pack 2, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation)
Description: Windows Print Spooler Remote Code Execution Vulnerability

CVSS Scores

CVSS v3.1

7.8 - HIGH

Vector: 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

SSVC Information

Exploitation: active
Technical Impact: total

Exploit Status

Exploited in the Wild: Yes (added 2021-11-03 00:00:00 UTC) Source
Proof of Concept Available: Yes (added 2024-02-12 20:54:51 UTC) Source
Used in Malware: Yes (added 2021-11-03 00:00:00 UTC) Source

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675 https://www.kb.cert.org/vuls/id/383432 http://packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html http://packetstormsecurity.com/files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code-Execution.html http://packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.html

Known Exploited Vulnerability Information

Source	Added Date
CISA	2021-11-03 00:00:00 UTC

Scanner Integrations

Scanner	URL	Date Detected
Metasploit	https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/dcerpc/cve_2021_1675_printnightmare.rb	2025-04-29 11:01:33 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

whoami-chmod777/CVE-2021-1675-CVE-2021-34527

Type: github • Created: 2024-02-12 20:54:51 UTC • Stars: 1

TheJoyOfHacking/calebstewart-CVE-2021-1675

Type: github • Created: 2022-02-22 03:32:34 UTC • Stars: 2

AndrewTrube/CVE-2021-1675

Type: github • Created: 2022-01-30 04:47:44 UTC • Stars: 5

PrintNightmare Local Privilege Escalation

OppressionBreedsResistance/CVE-2021-1675-PrintNightmare

Type: github • Created: 2021-10-05 19:24:23 UTC • Stars: 1

Working PowerShell POC

mstxq17/CVE-2021-1675_RDL_LPE

Type: github • Created: 2021-09-01 11:25:04 UTC • Stars: 148

PrintNightMare LPE提权漏洞的CS 反射加载插件。开箱即用、通过内存加载、混淆加载的驱动名称来ByPass Defender/EDR。

hahaleyile/my-CVE-2021-1675

Type: github • Created: 2021-07-22 10:49:30 UTC • Stars: 3

see https://github.com/cube0x0/CVE-2021-1675

zha0/Microsoft-CVE-2021-1675

Type: github • Created: 2021-07-18 15:00:27 UTC • Stars: 0

galoget/PrintNightmare-CVE-2021-1675-CVE-2021-34527

Type: github • Created: 2021-07-12 08:18:40 UTC • Stars: 0

CVE-2021-1675 / CVE-2021-34527 - PrintNightmare Python, C# and PowerShell Exploits Implementations (LPE & RCE)

bartimusprimed/CVE-2021-1675-Yara

Type: github • Created: 2021-07-08 16:18:52 UTC • Stars: 2

exploitblizzard/PrintNightmare-CVE-2021-1675

Type: github • Created: 2021-07-04 09:50:39 UTC • Stars: 5

Youtube : https://youtu.be/Zr0KjYDSFKQ

corelight/CVE-2021-1675

Type: github • Created: 2021-07-02 16:44:24 UTC • Stars: 9

killtr0/CVE-2021-1675-PrintNightmare

Type: github • Created: 2021-07-02 16:12:15 UTC • Stars: 2

thomasgeens/CVE-2021-1675

Type: github • Created: 2021-07-02 06:14:29 UTC • Stars: 3

Leonidus0x10/CVE-2021-1675-SCANNER

Type: github • Created: 2021-07-02 01:45:00 UTC • Stars: 10

Vulnerability Scanner for CVE-2021-1675/PrintNightmare

calebstewart/CVE-2021-1675

Type: github • Created: 2021-07-01 23:45:58 UTC • Stars: 1050

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

tanarchytan/CVE-2021-1675

Type: github • Created: 2021-07-01 19:50:46 UTC • Stars: 0

Fix without disabling Print Spooler

cybersecurityworks553/CVE-2021-1675_PrintNightMare

Type: github • Created: 2021-07-01 13:58:01 UTC • Stars: 23

puckiestyle/CVE-2021-1675

Type: github • Created: 2021-07-01 12:24:19 UTC • Stars: 1

hlldz/CVE-2021-1675-LPE

Type: github • Created: 2021-07-01 09:47:13 UTC • Stars: 333

Local Privilege Escalation Edition for CVE-2021-1675/CVE-2021-34527

evilashz/CVE-2021-1675-LPE-EXP

Type: github • Created: 2021-07-01 09:00:31 UTC • Stars: 59

PrintNightmare , Local Privilege Escalation of CVE-2021-1675 or CVE-2021-34527

LaresLLC/CVE-2021-1675

Type: github • Created: 2021-06-30 18:32:17 UTC • Stars: 216

CVE-2021-1675 Detection Info

cube0x0/CVE-2021-1675

Type: github • Created: 2021-06-29 17:24:14 UTC • Stars: 1881

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

yu2u/CVE-2021-1675

Type: github • Created: 2021-06-29 14:24:30 UTC • Stars: 2

CVE-2021-1675 exploit