Detections
Analytics
CVE-2021-1675
high
Description
Windows Print Spooler Remote Code Execution Vulnerability
From the Tenable Blog
CVE-2021-1675: Proof-of-Concept Leaked for Critical Windows Print Spooler Vulnerability
Published: 2021-06-29
Researchers published and deleted proof-of-concept code for a remote code execution vulnerability in Windows Print Spooler, called PrintNightmare, though the PoC is likely still available. Update July 2: The Background, Analysis and Solution sections have been updated with new information for CVE-2021-34527 issued by Microsoft on July 1. No patch has yet been released for the new CVE, but additional information and mitigation options are offered in the advisory.
References
https://www.kb.cert.org/vuls/id/383432
http://packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html
https://www.edgescan.com/wp-content/uploads/2024/03/2023-Vulnerability-Statistics-Report.pdf
https://www.tenable.com/cyber-exposure/a-look-inside-the-ransomware-ecosystem
https://www.cisa.gov/news-events/cybersecurity-advisories/aa22-117a
https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective
https://therecord.media/printnightmare-vulnerability-weaponized-by-magniber-ransomware-gang
https://github.com/VelesSecurity/CVE-2021-1675-PrintNightmare-Analysis
https://github.com/kaiw-icspark25/PrintNightmare-CVE-2021-1675-Analysis
https://github.com/HermesNA-1/SnakeSploit
https://github.com/joel6948/CVE-Writeups
https://github.com/Gorstak-Zadar/Patcher
https://github.com/ccordeiro/CVE-2021-1675
https://github.com/VoiidByte/Impacket
https://github.com/ArtAtrium/PrintNightmare
https://github.com/GlacierGossip/PrintNightmare
https://github.com/CameraShutterBug/PrintNightmare
https://github.com/ozzy76/cveCheck
https://github.com/0xSs0rZ/Windows_Exploit
https://github.com/r1skkam/PrintNightmare
https://github.com/SaintsConnor/Exploits
https://github.com/m8sec/CVE-2021-34527
https://github.com/imhunterand/PenetrationTesterRE
https://github.com/CnHack3r/Awesome-hacking-tools
https://github.com/fumamatar/NimNightmare
https://github.com/5l1v3r1/CVE-2021-1675-Mitigation-For-Systems-That-Need-Spooler
https://github.com/Sirius-RJ/FullstackAcademy-Printernightmare-writeup-2105-E.C.A.R.
https://github.com/Wra7h/SharpPN
https://github.com/ly4k/PrintNightmare
https://github.com/Tomparte/PrintNightmare
https://github.com/hahaleyile/my-CVE-2021-1675
https://github.com/galoget/PrintNightmare-CVE-2021-1675-CVE-2021-34527
https://github.com/JumpsecLabs/PrintNightmare
https://github.com/byt3bl33d3r/ItWasAllADream
https://github.com/nemo-wq/PrintNightmare-CVE-2021-34527
https://github.com/ozergoker/PrintNightmare
https://github.com/gohrenberg/CVE-2021-1675-Mitigation-For-Systems-That-Need-Spooler
https://github.com/ptter23/CVE-2021-1675
https://github.com/Leonidus0x10/CVE-2021-1675-SCANNER
https://github.com/hlldz/CVE-2021-1675-LPE
https://github.com/evilashz/CVE-2021-1675-LPE-EXP
https://github.com/LaresLLC/CVE-2021-1675
https://github.com/cube0x0/CVE-2021-1675
https://github.com/yu2u/CVE-2021-1675
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1675
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675
http://packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.html
Details
Published: 2021-06-08
Updated: 2026-08-12
Named Vulnerability: PrintNightmareKnown Exploited Vulnerability (KEV)
Risk Information
CVSS v2
Base Score: 9.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
Severity: High
CVSS v3
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
EPSS
EPSS: 0.86132