[ CVE-2021-1675 · Published 8 Jun 2021 ]
Microsoft Windows Print Spooler Remote Code Execution Vulnerability
Exploited · CISA KEV CVSS 7.8
EPSS 85%Fix available
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03
- Known to be used in ransomware campaigns
- EPSS: 85% chance of exploitation in the next 30 days (higher than 100% of CVEs)
[ Description ]Official description
Windows Print Spooler Remote Code Execution Vulnerability
CISA: Microsoft Windows Print Spooler contains an unspecified vulnerability that allows for remote code execution.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 17 Nov 2021): Apply updates per vendor instructions.
- Patch on portal.msrc.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ References ]References
- packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.htmlThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code…Third Party AdvisoryVDB Entry
- packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.htmlExploitThird Party AdvisoryVDB Entry
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675PatchVendor Advisory
- www.kb.cert.org/vuls/id/383432Third Party AdvisoryUS Government Resource
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource