CVE-2021-1675
Microsoft Windows Print Spooler Remote Code Execution Vulnerability
CVSS
7.8
High
EPSS
85.3%
p100
KEV
YES
Nov 3, 2021
Exploit Today
80
0-100
Published: Jun 8, 2021 · Last modified: Aug 12, 2026
85.3%EPSS · 30 days86.1%
2026-09-162026-10-14
Product
Microsoft / Windows
Vulnerability
Microsoft Windows Print Spooler Remote Code Execution Vulnerability
Added to KEV
Nov 3, 2021
Remediate by
Nov 17, 2021
Known ransomware use
Yes
Summary description
Microsoft Windows Print Spooler contains an unspecified vulnerability that allows for remote code execution.
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2021-1675
Windows Print Spooler Remote Code Execution Vulnerability
- packetstormsecurity.comhttp://packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code-Execution.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.html
- portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675
- www.kb.cert.orghttps://www.kb.cert.org/vuls/id/383432
- packetstormsecurity.comhttp://packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code-Execution.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.html
- portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675
- www.kb.cert.orghttps://www.kb.cert.org/vuls/id/383432
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1675
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