Actively exploited · Published Jun 8, 2021 · Assigned by microsoft
CVE-2021-1675Windows Print Spooler Remote Code Execution Vulnerability
High 7.8 Exploited Ransomware
In plain English
A high-severity security flaw in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 85.3% (higher than 99.7% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code. Apply updates per vendor instructions.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)85.3%top 0.3% of all CVEs
Exploited in the wildYesCISA KEV since Nov 3, 2021
Attack tooling2Metasploit, Public PoC
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Nov 17, 2021.
Official description
Windows Print Spooler Remote Code Execution Vulnerability
Affected products (as reported)
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1675 x_refsource_MISC
- VU#383432 third-party-advisory, x_refsource_CERT-VN
- http://packetstormsecurity.com/files/163349/Microsoft-PrintNightmare-Proof-Of-Concept.html x_refsource_MISC
- http://packetstormsecurity.com/files/163351/PrintNightmare-Windows-Spooler-Service-Remote-Code-Execution.html x_refsource_MISC
- http://packetstormsecurity.com/files/167261/Print-Spooler-Remote-DLL-Injection.html x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1675 government-resource